Filtering Through Membrane (e.g., Ultrafiltration) Patents (Class 210/650)
  • Patent number: 10532323
    Abstract: The group of inventions relates to technologies for purifying liquid, primarily water for the domestic and/or drinking water supply in domestic and/or industrial conditions and in allotments and gardens. The characterizing feature of the group of inventions is that the design of a hollow fibre membrane device envisages, and a method for the manufacture thereof enables, the formation of a protective layer consisting of a single polymeric fixing material on the internal surfaces of mono-fibre sections which are incorporated into a binding unit, and the formation of sections which are in the form of a composite in the binding unit, which increases the strength of the hollow fibre membrane device, wherein open channels in the binding unit, formed with the aid of protective elements of an assembly base, make it possible to increase the specific filtering surface.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 14, 2020
    Assignee: Electrophor Inc.
    Inventors: Joseph Lvovich Shmidt, Nikolaj Victorovich Erukov, Stanislav Sergeevich Kuznetsov
  • Patent number: 10471391
    Abstract: Embodiments of the present invention provide for flow control devices on a spiral wound membrane, on a device proximal the inlet edge of a spiral wound membrane, or both. The flow directing devices can alter fluid flow characteristics to discourage fouling of the inlet fluid paths.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: November 12, 2019
    Assignee: Aqua Membranes, Inc.
    Inventors: Kevin Roderick, Rodney Herrington
  • Patent number: 10457904
    Abstract: A system, method, and apparatus for the fermentation of a beverage by use of continuous flow is provided. The fermented beverage can be any of a wine, beer, mead, ale, soda, cider, or other. The invention provides for small-scale fermentation that can be done in a much shorter time than previous batch fermentations. The small-scale and shortened time allows for variables to be introduced and tested to produce new varieties, flavors, qualities, and other combinations that are inputs of the fermented beverage.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: October 29, 2019
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Daniel Attinger, Liang Dong, Yuncong Chen
  • Patent number: 10434476
    Abstract: The invention relates to a multilayer metallic or ceramic membrane device, comprising a macroporous carrier layer including pores having a pore diameter of more than 50 nm, and at least one mesoporous intermediate layer disposed thereon, including pores having a pore diameter of 2 nm to 50 nm. The membrane device according to the invention furthermore comprises at least one microporous cover layer disposed on the mesoporous intermediate layer, including pores having an average pore diameter of 0.3 nm to 1.5 nm, comprising graphite oxide or few-layer graphene oxide or graphite or few-layer graphene. In an advantageous embodiment, the cover layer comprises between 5 and 1000 layers of graphene oxide. In an advantageous embodiment, the cover layer can comprise between 5 and 1000 layers of partially reduced graphene oxide or graphene as a result of the at least partial reduction of the graphene oxide.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: October 8, 2019
    Assignee: Forschungszentrum Juelich GmbH
    Inventors: Tim Van Gestel, Oliver Guillon
  • Patent number: 10426158
    Abstract: The invention concerns methods of treating stored blood and blood products maximizing shelf life and/or minimizing transfusion related complications such as non¬ hemolytic transfusion reactions such as fever, transfusion-related acute lung injury (TRALI), transfusion associated dyspnea (TAD), and allergic reactions by removing undesirable molecules in the blood and blood products milieu through use of a sorbent.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: October 1, 2019
    Assignee: CytoSorbents Corporation
    Inventors: Phillip P. Chan, Vincent J. Capponi, Thomas D. Golobish, Humayra Begum Ali
  • Patent number: 10428357
    Abstract: The subject invention relates to a process of preparing (R)-3-hydroxybutyric acid or a salt thereof by one-step fermentation with a nonpathogenic microorganism. The fermentation of (R)-3-hydroxybutyric acid was performed by supplying with certain carbon and nitrogen sources. These microorganisms include a Glutamic acid Bacterium HR057 strain or one type of genetically engineered Corynebacterium Glutamicum.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 1, 2019
    Assignee: NNB Nutrition USA, LLC
    Inventors: Kylin Liao, Wenchao Fan
  • Patent number: 10392270
    Abstract: A multi-effect membrane distillation system includes first and second membrane distillation effects. Each effect (stage) includes a feed channel, a gap, and a vapor-permeable membrane separating the feed channel from the gap. A liquid feed is fed into the feed channel of the first effect via a feed inlet, and the liquid feed is extracted from the first-stage feed channel via a first feed-transfer conduit that delivers the liquid feed to the second-stage feed channel. The feed is extracted from the second-stage feed channel via a second feed-transfer conduit. At least one permeate-extraction conduit is coupled with the first-stage and second-stage gaps and is configured to extract permeate (e.g., pure water) therefrom.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: August 27, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Jaichander Swaminathan, Ronan K. McGovern, Hyung-Won Chung, David Elan-Martin Warsinger, John H. Lienhard
  • Patent number: 10369262
    Abstract: A blood processing apparatus includes an optional heat exchanger and a gas exchanger disposed within a housing. In some instances, the gas exchanger can include a screen filter spirally wound into the gas exchanger such that blood passing through the gas exchanger passes through the screen filter and is filtered by the spirally wound screen filter a plurality of times.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 6, 2019
    Assignee: Sorin Group Italia S.r.l.
    Inventor: Stefano Reggiani
  • Patent number: 10369263
    Abstract: In embodiments of the invention, there is provided a dialyzer or filter comprising hollow fibers, in which blood flows on the exterior of the hollow fibers, and dialysate or filtrate may flow on the inside. The external surfaces of the hollow fibers may have properties of smoothness and hemocompatibility. The fiber bundle may have appropriate packing fraction and may have wavy fibers. Optimum shear rates and blood velocities are identified. Geometric features of the cartridge, such as pertaining to flow distribution of the blood, may be different for different ends of the cartridge. Air bleed and emboli traps may be provided. Lengthened service life may be achieved by combinations of these features, which may permit additional therapies and applications or better economics.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: August 6, 2019
    Assignee: Novaflux Inc.
    Inventors: Mohamed E. Labib, Stanislav S. Dukhin
  • Patent number: 10363336
    Abstract: A method of treating a liquid. The method comprises providing a feed liquid comprising at least one solvent and at least one solute to a first side of a membrane. A single-phase draw solution comprising at least one of an aminium salt, an amidinium salt, and a guanidinium salt is provided to a second side of the membrane. The at least one solvent is osmosed across the membrane and into the single-phase draw solution to form a diluted single-phase draw solution. At least one of CO2, CS2, and COS is removed from the diluted single-phase draw solution to form a first multiple-phase solution comprising a first liquid phase comprising the at least one solvent, and a second liquid phase comprising at least one of an amine compound, an amidine compound, and a guanidine compound. A liquid purification system is also described.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 30, 2019
    Assignee: BATTELLE ENERGY ALLIANCE, LLC
    Inventors: Aaron D. Wilson, Frederick F. Stewart, Mark L. Stone
  • Patent number: 10351430
    Abstract: A method, apparatus, and system for fabricating buckypaper or similar sheets of nanostructures having relatively high aspect ratios. A dispersion of nanostructures such as nanotubes is subjected to fluid dynamics/forces which promote alignment of their axes of elongation while in suspension in the flow. An agglomeration of better aligned nanostructures is isolated from the carrier fluid into a useable form. In the case of nanotubes, one form is buckypaper. One example of alignment forces is Taylor-Couette flow shear forces. One example of isolation is filtering the flowing dispersion to collect better aligned nanostructures across the filter into a sheet or film. The degree of alignment can produce anisotropic material properties that can be beneficially used in application of the sheet or film.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 16, 2019
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Michael R. Kessler, Daniel Vennerberg
  • Patent number: 10308526
    Abstract: Water treatment systems and associated methods are generally described. Certain embodiments of the water treatment systems and methods described herein may be used to treat water comprising one or more contaminants (e.g., oil, grease, suspended solids, scale-forming ions, volatile organic material) to remove at least a portion of the one or more contaminants. In some embodiments, at least a portion of the treated water may be used directly in certain applications (e.g., oil and/or gas extraction processes). In some embodiments, at least a portion of the treated water may undergo desalination to produce substantially pure water and/or concentrated brine.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 4, 2019
    Assignee: Gradiant Corporation
    Inventors: Maximus G. St. John, Steven Lam, Prakash Narayan Govindan
  • Patent number: 10287201
    Abstract: Produced water from a crude oil or natural gas production process is purified using a membrane purification system for petroleum production, agricultural, commercial and domestic uses. The produced water is pretreated to remove, at least, particulates and oil from the produced water. The minimally pretreated water is then purified in a membrane purification system, that is operated at conditions such that membrane scaling is reduced or prevented. In particular, the membrane purification system is operated to maintain the turbidity of clarified water feed to the system or intermediate aqueous streams that are cascading through the membrane purification system. Ensuring that the turbidity of the reject streams generated in the membrane system are useful in achieving long membrane operating life.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 14, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Sandra Heimel, Ronald David Hobbs, Fan-Sheng Teddy Tao
  • Patent number: 10252219
    Abstract: Provide is a reverse osmosis membrane device that is capable of treating raw water containing membrane-fouling substance in large quantities, such as MBR-treated water, in a stable manner while preventing decreases in permeate flow rate, and a method for operating thereof. A method for operating a reverse osmosis membrane device that treats raw water containing high-molecular-weight organic matter, wherein the raw water contains high-molecular-weight organic matter having a molecular weight of 10,000 or more at a concentration of 0.01 ppm or more, wherein the reverse osmosis membrane device is equipped with a spiral-type reverse osmosis membrane element that has a membrane surface area satisfying the below formula (1), and wherein the reverse osmosis membrane device is operated at a permeate flux of 0.6 m/d or less: membrane surface area(m2)?n2×(11/16)??(1) wherein n represents a diameter (inches) of the reverse osmosis membrane element.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: April 9, 2019
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventors: Kunihiro Hayakawa, Takahiro Kawakatsu
  • Patent number: 10247725
    Abstract: A new sensitive cell biomarker of solid tumors is identified in blood. This biomarker can be used to determine presence of carcinomas, rapid determination of treatment response, early detection of cancer, early detection of cancer recurrence, and may be used to determine therapy.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 2, 2019
    Assignee: CREATV MICROTECH INC.
    Inventors: Daniel Adams, Cha-Mei Tang
  • Patent number: 10052590
    Abstract: In order to efficiently transport a filtration target liquid to a separation membrane module and to facilitate additional simplification of equipment in a filtration device including the separation membrane modules in which a plurality of lines thereof are disposed in series, a filtration device according to the present invention is a filtration device including a plurality of separation membrane modules each of which separates a liquid to be filtrated into a permeated liquid and a non-permeated liquid, in which the filtration device includes: a series non-permeated liquid flow channel that forms a series unit by connecting non-permeation sides of the plurality of separation membrane modules in series; and a parallel permeated liquid flow channel that forms a parallel unit by connecting permeation sides of the plurality of separation membrane modules in parallel.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: August 21, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Aya Nishio, Norihiro Takeuchi, Atsushi Kobayashi
  • Patent number: 10040030
    Abstract: A device for micro-, ultra-, or nanofiltration that includes one or more flat filter modules having flat filter elements arranged in parallel and at a distance from each other and gas injectors of one or more gas lifting systems for producing a circulating cross flow directed tangentially to the surface of the flat filter elements and having at least one rising area, in which the cross flow flows substantially vertically upward, and at least one falling area, in which the cross flow flows substantially vertically downward, in which the rising area flows through 10 to 100% and the falling area flows through 10 to 100% of an inlet-flow volume of the at least one flat filter module.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: August 7, 2018
    Assignee: Microdyn-Nadir GmbH
    Inventors: Stefan Krause, Ulrich Meyer-Blumenroth
  • Patent number: 10022484
    Abstract: According to embodiments, priming systems, methods, and devices are disclosed which allow medical treatment devices which pump fluid to be primed with minimal operator intervention and a high level of convenience. A blood circuit with a filter fitted with one or more air vents on a non-blood compartment is attached to a treatment system and priming fluid pumped slowly through the blood circuit in a loop. The source of fluid may be elevated, or the pumping may generate pressure, such that priming fluid is forced through the membrane of the filter and out the air vent(s). In embodiments, the vents are hydrophobic which prevent fluid from being ejected, so the priming system can nm without intervention.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 17, 2018
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: James M. Brugger, William J. Schnell
  • Patent number: 10010834
    Abstract: A membrane separation device includes a separation membrane immersed in water to be treated and an air diffusion device positioned below the separation membrane, and provides treated water that has permeated through the separation membrane while diffusing air from the air diffusion device towards the separation membrane. A target value setting step sets a target value of an amount of diffusion air diffused from the air diffusion device based on a transmembrane pressure difference, and the air diffusion device is controlled such that the amount of the diffusion air becomes the target value. In the target value setting step, an absolute value of a change or a rate of change in the target value for increasing the amount of the air diffusion is set greater than an absolute value of a change or a rate of change in the target value for decreasing the amount of the air diffusion.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: July 3, 2018
    Assignee: Kubota Corporation
    Inventors: Yasuyuki Yoshida, Yuji Ohtsuka
  • Patent number: 9963620
    Abstract: An environmentally friendly puncture sealing composition is provided which includes natural rubber latex, suitably high filtered natural rubber latex having a controlled particle size, and an aqueous antifreeze agent that includes water, glycerin and propylene glycol. The aqueous antifreeze agent has a viscosity profile similar to common ethylene glycol-based antifreeze agents, but is free of ethylene glycol. The puncture sealing composition avoids the environmental hazards of ethylene glycol, and is effective at temperatures of ?30° C. and lower.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 8, 2018
    Assignee: Illinois Tool Works Inc.
    Inventors: Shees N. Sulemanji, Brandt A. Haener, Bryan Douglas Smith, Martin Patrick Spindler, Henry Friedrich Ferdinand Klemm, Gordon Chetosky
  • Patent number: 9932250
    Abstract: According to one embodiment, a membrane filtration system includes a raw water tank, a pretreatment membrane module, a raw water feed line, a high-pressure RO membrane module, a high-pressure line, a preceding power recovery unit which pressurize the pretreated water by transmitting the pressure of the concentrate to the pretreated water, a succeeding power recovery unit which pressurize the raw water by transmitting a remaining pressure of the concentrate to the raw water, a concentrate discharge line, a first pressure transmission line communicating to the power recovery unit by being branched from the high-pressure line, a second pressure transmission line communicating to the power recovery unit by being branched from the raw water feed line, and a valve provided in the drain line to regulate a discharge of the concentrate from the power recovery unit in accordance with a pressure loss in the pretreatment membrane module.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 3, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Matsushiro, Katsuya Yokokawa, Futoshi Kurokawa, Ryo Namba, Koichi Matsui, Hideaki Yamagata, Yuka Hiraga, Seiichi Murayama, Hiroyuki Tokimoto
  • Patent number: 9909259
    Abstract: Systems and methods are provided for producing continuous buckypapers. The systems may permit the in-line characterization and crosslinking of the continuous buckypapers. The systems include roll-to-roll systems in which a continuous buckypaper is created and then separated from the filter paper in an automated process.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 6, 2018
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Gerald Horne, Zhiyong Liang
  • Patent number: 9895482
    Abstract: A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 20, 2018
    Assignee: Fenwal, Inc.
    Inventors: Benjamin E. Kusters, Christopher J. Wegener, Kyungyoon Min
  • Patent number: 9884768
    Abstract: Disclosed is a method for manufacturing a vertically-growing open carbon nanotube thin film. The method comprises: grinding the surface of a ceramic film by using metallographical sandpaper, performing ultrasonic cleaning by using acetone and performing boiling with water, and performing drying to obtain a ceramic film substrate; dissolving a catalyst ferrocene in a carbon source dimethylbenzene in an ultrasonic manner, and adding a carbon nanotube growth promoting agent thiophene to form a mixed solution; putting the ceramic film substrate in a tubular furnace reactor, introducing nitrogen, and slowly injecting the mixed solution at a constant speed to perform a high-temperature vapor deposition reaction; and further performing plasma etching and nitric acid reflux heating treatment to open closed ends of carbon nanotubes, and removing catalyst particles on the carbon nanotube thin film to obtain the open carbon nanotube thin film that is highly vertically aligned.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: February 6, 2018
    Assignee: Nanjing Tech University
    Inventors: Zhaoxiang Zhong, Yang Zhao, Zhong Yao
  • Patent number: 9884111
    Abstract: The present invention discloses processes for producing native, depigmented and polymerized allergen extracts. The invention further discloses extracts produced via the processes, and pharmaceutical and vaccine compositions comprising the extracts, for diagnosis and treatment of allergy.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: February 6, 2018
    Assignee: Laboratorios Leti, S.L.
    Inventor: Jerónimo Carnés-Sánchez
  • Patent number: 9849428
    Abstract: Disclosed are copolymers suitable for hydrophilically modifying the surface of porous fluoropolymer supports, for example, a copolymer of the formula (I) or (II): wherein Rf, Rh, Ra, Y, m, and n are as described herein. Also disclosed are a method of preparing the copolymers, a method of hydrophilically modifying porous fluoropolymer supports, hydrophilic fluoropolymer porous membranes prepared from the polymers, and a method of filtering fluids through the porous membranes.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 26, 2017
    Assignee: Pall Corporation
    Inventors: Marcin Stasiak, Hassan Ait-Haddou
  • Patent number: 9845407
    Abstract: Provided is a method of manufacturing a polymer electret. The method of manufacturing a polymer electrets includes forming a polymer thin film, which includes a block copolymer (BCP) having two or more polymer chains covalently bonded together; forming a nano-structure of the BCP in which a first block formed by first polymer chains that self-assemble together and a second block formed by second polymer chains that self-assemble together are micro-phase-separated, by performing an annealing process on the polymer thin film; forming a porous polymer film with a nano-pore by selectively removing one of the first block and the second block; and charging the porous polymer film.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung Im Kim, Won Sang Park, Yi Joon Ahn, Suk Man Yang, Yong Suk Yeo, Tae Hee Lee
  • Patent number: 9843030
    Abstract: A polyolefin multilayer microporous membrane is disclosed. The polyolefin multilayer microporous membrane has at least three layers, the membrane comprising a first microporous layer composed of a polyethylene resin containing an ultrahigh molecular weight polyethylene (surface layers) and a second microporous layer composed of a polyolefin rein containing a high-density polyethylene and polypropylene (intermediate layer), wherein (I) the pin puncture strength is at least 25 g/?m, (II) the coefficient of static friction with respect to a metal foil is at least 0.40, and (III) the meltdown temperature is at least 180° C.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 12, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yukiko Miura, Hideto Mitsuoka, Takashi Kubota
  • Patent number: 9803751
    Abstract: An apparatus is disclosed. The apparatus includes a seal having an annular body including an upper surface and a lower surface. The annular body also includes an outer side surface and an inner side surface that join the upper surface to the lower surface. The inner side surface contributes to defining an endcap-engaging surface of the seal including: a first endcap surface engaging portion that is sized for engaging a portion of an upper surface of an endcap, a second endcap surface engaging portion that is sized for engaging an outer side surface of the endcap, and a third endcap surface engaging portion that is sized for engaging a lower surface of the endcap. The annular body includes an upper portion connected to a lower portion. The upper portion of the annular body of the seal is defined by a rounded seal portion. The lower portion of the annular body of the seal is defined by a flexible tang portion and a flexible leg portion.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: October 31, 2017
    Assignee: Wix Filtration Corp LLC
    Inventors: Nikolas H. Johansen, Darrell T. McKenzie
  • Patent number: 9795930
    Abstract: A water separation composite membrane is provided. The water separation composite membrane includes a carrier with a plurality of pores, wherein the carrier is made of a polymer having a repeat unit of and a selective layer disposed on the porous carrier, wherein the selective layer consists of a plurality of graphene oxide layers.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 24, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Lun Lai, Chih-Chang Chang, Shao-I Yen, Jung-Nan Hsu, Chun-Nan Kuo
  • Patent number: 9764292
    Abstract: Membranes comprising first and second microporous surfaces, and, a porous bulk between the surfaces, the bulk comprising first and second regions; the first region comprising a first set of pores having outer rims, and having controlled pore size, and a second set of pores connecting the outer rims of the first set of pores, the second set of pores having a controlled pore size, and a polymer matrix supporting the first set of pores; the second region comprising a third set of pores having outer rims, and having a controlled pore size, and a fourth set of pores connecting the outer rims of the third set of pores, the fourth set of pores having a controlled pore size, and a polymer matrix supporting the third set of pores; and methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 19, 2017
    Assignee: Pall Corporation
    Inventors: Yolando David, Shane Edward Harton
  • Patent number: 9758388
    Abstract: A water filtration system uses previously used medical filters, such as dialysis filters, for water purification. After medical use the filters are cleaned and sterilized and mounted singly or in groups so as to receive input water under pressure. The system produces sterile filtered water.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: September 12, 2017
    Assignee: Nufiltration Ltd.
    Inventor: Yoram Lass
  • Patent number: 9744617
    Abstract: Multi-layer sheets of graphene-based material having a plurality of pores extending therethrough are described herein. Methods for making the sheets include exposing a graphene-based material comprising multilayer graphene having from 5 to 20 layers of graphene to a particle beam having an ion energy of at least about 1500 eV to create damage tracks in the graphene sheets. The damage tracks in the graphene sheets are then exposed to a chemical etchant, such as an oxidant to define pores through the stacked graphene sheets. Production of the damage tracks and etching of the damage tracks can take place while the graphene is disposed on a substrate.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: August 29, 2017
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Peter V. Bedworth, Jacob L. Swett
  • Patent number: 9718104
    Abstract: The present invention relates to a system for remediating highly contaminated fine soil using multiple micro hydrocyclones that includes: a mill adapted to mix contaminated soil with water and to individualize the soil; a screen adapted to separate the soil introduced from the mill into soil having given particle sizes; a separator adapted to finely separate the soil having particle sizes of less than a given value by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the finely separated soil introduced from the separator by particle size by means of process water for washing; and a filtering unit adapted to separately discharge the soil washed and introduced through the remediating unit and the process water for washing contained in the soil.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 1, 2017
    Assignee: HYUNDAI ENGINEERING & CONSTRUCTION CO., LTD.
    Inventors: Jungyo Jung, Wan Hyup Kang, Heehun Chae, Junghee Chang
  • Patent number: 9649718
    Abstract: Multi-layer sheets of graphene-based material having a plurality of pores extending therethrough are described herein. Methods for making the sheets include exposing a graphene-based material comprising multilayer graphene having from 5 to 20 layers of graphene to a particle beam having an ion energy of at least about 1500 eV to create damage tracks in the graphene sheets. The damage tracks in the graphene sheets are then exposed to a chemical etchant, such as an oxidant to define pores through the stacked graphene sheets. Production of the damage tracks and etching of the damage tracks can take place while the graphene is disposed on a substrate.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: May 16, 2017
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Peter V. Bedworth, Jacob L. Swett
  • Patent number: 9637396
    Abstract: A container for liquids is provided, in which pressurization of the container is used to force the liquid through one or more membranes to an output. The membranes are disposed across substantially an entire length of the container, and pass liquid in preference to the air. As a result, the liquid may be extracted from the container in any orientation. A particular use for this kind of container is as a portable water bottle containing a filter.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: May 2, 2017
    Assignee: PRITCHARD SPRAY IP LIMITED
    Inventor: Michael Pritchard
  • Patent number: 9611140
    Abstract: In a method of forming a nanopore in a nanometric material, a nanopore nucleation site is formed at a location that is interior to lateral edges of the nanometric material by directing a first energetic beam, selected from the group of ion beam and neutral atom beam, at the interior location for a first time duration that imposes a first beam dose which causes removal of no more than five interior atoms from the interior location to produce at the interior location a nanopore nucleation site having a plurality of edge atoms. A nanopore is then formed at the nanopore nucleation site by directing a second energetic beam, selected from the group consisting of electron beam, ion beam, and neutral atom beam, at the nanopore nucleation site with a beam energy that removes edge atoms at the nanopore nucleation site but does not remove bulk atoms from the nanometric material.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: April 4, 2017
    Assignee: President and Fellows of Harvard College
    Inventors: Christopher John Russo, Jene Golovchenko, Daniel Branton
  • Patent number: 9586180
    Abstract: The present invention relates to methods of generating highly concentrated protein solutions, e.g., an antibody solution, a therapeutic protein solution, etc. The methods of the invention include membrane evaporation, such as evaporation of protein-free solvent from the protein solution, which concentrates the protein. The methods of the present invention result in protein solution concentrations not previously achievable by conventional ultrafiltration methods, e.g., protein solution concentrations of greater than about 260 grams of protein per liter of solution.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: March 7, 2017
    Assignee: Wyeth LLC
    Inventors: Glen Reed Bolton, Hari Acharya, Austin Wayne Boesch
  • Patent number: 9574167
    Abstract: A microreactor with a reaction chamber comprising two sub-chambers with reconfigurable volumes, an input conduit with input valve, an un-filtered output conduit with first output valve, and a filtered output conduit with a second output valve is used to perform a method to control a different dilution rate for cells and molecules in continuous culture bioprocesses. In preferred embodiments flow control is achieved using the difference in volume of the two sub-chambers.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: February 21, 2017
    Assignee: Pharyx, Inc.
    Inventors: Harry Lee, Kevin Shao-Kwan Lee
  • Patent number: 9480954
    Abstract: The present invention provides a high selectivity epoxysilicone-cross-linked polyimide membrane comprising a polyimide polymer with hydroxyl functional groups cross-linked with epoxy functional groups on epoxysilicone polymer. The present invention also provides a process for separating at least one gas from a mixture of gases using the high selectivity epoxysilicone-cross-linked polyimide membrane. The process comprises providing the high selectivity epoxysilicone-cross-linked polyimide membrane which is permeable to the at least one gas; contacting the mixture on one side of the membrane to cause the at least one gas to permeate the membrane; and removing from the opposite side of the membrane a permeate gas composition comprising a portion of the at least one gas which permeated the high selectivity epoxysilicone-cross-linked polyimide membrane.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 1, 2016
    Assignee: UOP LLC
    Inventors: Chunqing Liu, Howie Q. Tran
  • Patent number: 9475009
    Abstract: The present invention is directed to the preparation and use of aromatic polyimide nanowebs with amide-modified surfaces. Uses include as a filtration medium, and as a separator in batteries, particularly lithium-ion batteries. The invention is also directed to a method comprising the aromatic polyimide nanoweb with amide-modified surface. The invention is further directed to a multi-layer article comprising the aromatic polyimide nanoweb with amide-modified surface, and to an electrochemical cell comprising the multi-layer article.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 25, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: T. Joseph Dennes, Stephen Mazur
  • Patent number: 9452253
    Abstract: In an extracorporeal blood circuit system or a machine configurable in such a circuit, a bag blood reservoir has an infusion port at the upper end of the bag, an outlet port at the lower end of the bag, an inlet port at the lower end of the bag, and an IV port at the lower end of the bag. A split line is connected to the infusion port, having a first branch line connected to a source makeup fluid into the reservoir and a second branch line that evacuates from the reservoir. An air detector and a vent controller automatically configure a venting path in which the inlet lines to the pump and to the blood reservoir are open such that air rises to the upper end of the blood reservoir from which it can be vented through the infusion port into the air evacuation line.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 27, 2016
    Inventor: Keith Samolyk
  • Patent number: 9446355
    Abstract: Membranes comprising first and second surfaces, the first surface comprising a patterned surface comprising peaks and valleys, first region surfaces comprising peaks, and second region surfaces comprising valleys; a porous bulk between the surfaces, the bulk comprising first region bulks and second region bulks; the region bulks extending from their respective region surfaces, the first region bulks comprising a first set of pores having outer rims, and a second set of pores connecting the outer rims of the first set of pores, and a first polymer matrix supporting the first set of pores; the second region bulks comprising a third set of pores having outer rims, and a fourth set of pores connecting the outer rims of the third set of pores, and a second polymer matrix supporting the third set of pores; filters including the membranes, and methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 20, 2016
    Assignee: PALL CORPORATION
    Inventors: Geoffrey P. LaRue, Yolando David, Shane Edward Harton
  • Patent number: 9428626
    Abstract: An embodiment of this invention discloses a method for producing a network texture and the method comprises the steps of: formation of a porous structure as a template (matrix); formation of two coherent, independent, and separated robust continuous network structures within the matrix by using the matrix as the template; softening or removing the matrix to shift the two continuous network structures, leading to a novel network texture comprising two incoherent continuous network structures.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: August 30, 2016
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Rong-Ming Ho, Han-Yu Hsueh, Yu-Chueh Hung, Yi-Chun Ling, Hsiao-Fang Wang, Lung-Yu Chang Chien
  • Patent number: 9403126
    Abstract: The present invention relates to ultrafiltration. In particular, the present invention provides nanoporous membranes having pores for generating in vitro and in vivo ultrafiltrate, devices and bioartificial organs utilizing such nanoporous membranes, and related methods (e.g., diagnostic methods, research methods, drug screening). The present invention further provides nanoporous membranes configured to avoid protein fouling with, for example, a polyethylene glycol surface coating.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: August 2, 2016
    Assignees: THE REGENTS OF THE UNIVERSITY OF MICHIGAN, THE CLEVELAND CLINIC FOUNDATION
    Inventors: William H. Fissell, Shuvo Roy, Aaron Fleischman, Kenneth G. Goldman
  • Patent number: 9387440
    Abstract: A fluid pumping system with energy recovery features may provide feed water to a reverse osmosis unit. The system includes an electronic controller unit that regulates the output of three hydraulic pumps. Each hydraulic pump drives the movement of a piston in a cylinder. The pistons collectively deliver a generally constant flow of high pressure feed water. Valve bodies direct reverse osmosis concentrate to the back sides of the pistons. The electronic controller coordinates the output of the hydraulic pumps with the actuation of the valve bodies. Movement of the pistons is controlled, in part, by a feed back loop to verify the desired hydraulic pump output. Valve bodies are designed to begin closing when an associated piston velocity decreases. The valve body moves after a dwell period when an associated piston should not be moving. The piston and cylinder are designed for exposure to high salt-content water.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: July 12, 2016
    Assignee: General Electric Company
    Inventors: Matthew D. d'Artenay, Willard D. Childs, Gerard J. Vanderloop, Michael J. Connor, Jr.
  • Patent number: 9333464
    Abstract: A membrane filter module configured to treat a liquid contained in a tank at an ambient pressure. The module may have a header, with a bundle containing a plurality of substantially vertical hollow fiber membranes, wherein a lower end of each hollow fiber membrane is fixed in the header. The module may also have a gasification device adapted to periodically generate a gaseous bubble and configured to release the gaseous bubble within the bundle. The module may further have an enclosure that substantially surrounds the bundle that extends from a lower region to an upper region of the membrane bundle, wherein the enclosure is configured to retain the liquid introduced into the enclosure such that the liquid surrounds the membrane bundle. The gaseous bubble has a cross-sectional area that corresponds with a cross-sectional area of the enclosure, such that the cross-sectional area of the gaseous bubble occupies substantially the entire cross-sectional area of the enclosure as it flows along the bundle.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 10, 2016
    Assignee: Koch Membrane Systems, Inc.
    Inventors: Taylour L. Johnson, David M. Colby, Manwinder Singh
  • Patent number: 9308490
    Abstract: Disclosed are various turbulent, corrosion-resistant heat exchangers used in desiccant air conditioning systems.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: April 12, 2016
    Assignee: 7AC Technologies, Inc.
    Inventors: Peter F. Vandermeulen, Mark Allen, Arthur Laflamme
  • Patent number: 9301667
    Abstract: A dishwasher with a tub at least partially defining a treating chamber, a liquid spraying system supplying a spray of liquid to the treating chamber, a liquid recirculation system defining a recirculation flow path, and a liquid filtering system having a rotating filter. A chopping system is included to macerate foreign objects within the recirculation flow path and includes a blade mounted to the rotating filter.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 5, 2016
    Assignee: Whirlpool Corporation
    Inventor: Todd M. Jozwiak
  • Patent number: 9302228
    Abstract: Membranes comprising a single layer having a first microporous surface; a second microporous surface; and, a porous bulk between the first microporous surface and the second microporous surface, wherein the bulk comprises a first set of pores having outer rims, prepared by removing introduced dissolvable silica nanoparticles, the first set of pores having a first controlled pore size, and a second set of pores connecting the outer rims of the first set of pores, the second set of pores having a second controlled pore size, and a polymer matrix supporting the first set of pores, wherein the first controlled pore size is greater than the second controlled pore size, and wherein the first and/or second microporous surface comprises a neutrally charged, a negatively charged, or a positively charged, surface; filters including the membranes, and methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 5, 2016
    Assignee: Pall Corporation
    Inventors: Amarnauth Singh, Yolando David, Shane Edward Harton