Filtering Through Membrane (e.g., Ultrafiltration) Patents (Class 210/650)
  • Patent number: 10987639
    Abstract: Provided is a an amphiphilic diblock copolymer including from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophilic block including a unit derived from an n-butyl acrylate monomer and a derived from a hydroxyethyl methacrylate monomer. The copolymer also includes from 40 to 60% by weight, relative to the weight of the copolymer, of a hydrophobic block including at least one unit derived from a methyl methacrylate monomer. Also provided is a polymeric membrane that includes the block copolymer and a hydrophobic polymeric matrix. This membrane is useful for treating an effluent, for example, water.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: April 27, 2021
    Assignees: Arkema France, Polymem
    Inventors: Walter Phillip Kosar, Olivier Lorain, Sébastien Marcellino, François Beaume, Pierre Gerard
  • Patent number: 10981119
    Abstract: The invention relates to a gas in/outlet-adapter system for a container/rack assembly for a diagnostic robot comprising: —a receptacle (15) comprising a gas-inlet wherein the receptacle (15) is attached to a container (12), —a nozzle (16) comprising a gas-outlet wherein the nozzle (16) is attached to a rack to supply the container (12) via the receptacle (15) with a gas at a defined pressure level, wherein the receptacle (12) —provides one opening (24) —which provides for a fluidic contact to the interior of the container (12) —and a second opening (25) —which provides for a gas leak-proof connection to the nozzle (16) on the rack when the receptacle (15) is placed over the nozzle (16), and wherein the nozzle (16) —provides one opening (26) —which provides for a fluidic contact to a tubing system of the rack—and a second opening (27) —which provides for a fluidic contact to the nozzle (16) when the receptacle (15) is placed to cover the nozzle (15).
    Type: Grant
    Filed: February 18, 2017
    Date of Patent: April 20, 2021
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Claus Tuma
  • Patent number: 10974202
    Abstract: The present invention relates to modified ceramic membranes for the treatment of water. The invention discloses a modified ceramic membrane, comprising: a ceramic membrane, and an outer surface of said ceramic membrane is grafted by a hydrophilic organosilane, wherein said organosilane is selected from the group consisting of: CH30(C2H40)x(CH2)ySi(OCH3)3, where x is >4 and y is >0; CH30(C2H40)x(CH2)ySi(OCH2CH3)3, where x is >4 and y is >0; (CH30)3Si(CH2)yO(C2H40)x(CH2)ySi(OCH3)3, N where x is >4 and y is >0; and (CH3CH20)3Si(CH2)yO(C2H40)x(CH2)ySi(OCH2CI-13)3, where x is >4 and y is >0.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: April 13, 2021
    Assignee: HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF NATURAL RESOURCES
    Inventors: Saviz Mortazavi, Andre Yves Tremblay, Charbel Atallah
  • Patent number: 10920559
    Abstract: An inverted Y-tool is positioned in multiphase wellbore fluid flowing through a wellbore. The inverted Y-tool separates at least a portion of gas from the multiphase wellbore fluid and, after separating at least the portion of the gas from the multiphase wellbore fluid, directs the multiphase wellbore fluid to a downhole pump that pumps the wellbore fluid in an uphole direction.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 16, 2021
    Assignee: Saudi Arabian Oil Company
    Inventor: Amr Mohamed Zahran
  • Patent number: 10906011
    Abstract: The present invention relates to a layered semipermeable membrane satisfying the conditions below. (A) The maximum peak intensity between 3700 and 2900 cm?1 is 0.08 or greater in the difference spectrum between an IR spectrum measured at 25° C. and 97% relative humidity and an IR spectrum measured at 25° C. and 3% relative humidity. (B) The peak top wavenumber between 3700 and 2900 cm?1 of the aforementioned difference spectrum is 3400 cm?1 to 3550 cm?1. (C) The N1s peak has a maximum value at 401 eV or greater in X-ray photoelectron spectroscopy in which X-rays are radiated to a coat layer.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: February 2, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takahiro Tokuyama, Takafumi Ogawa, Hiroki Tomioka
  • Patent number: 10889915
    Abstract: Systems and methods can be used to produce fibers with external corrugations, internal corrugations, or both. These fibers can be used, for example, in hollow fiber membrane modules.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: January 12, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Seung-Hak Choi, Sarah N. Almahfoodh
  • Patent number: 10876963
    Abstract: The present invention relates to devices and methods for improving and evaluating stability of pumped protein solutions in cross-flow filtration applications. Inter alia, the present invention provides a peristaltic pump for cross-flow filtration having a pump head, wherein the pump head comprises a stepped occlusion plate and at least one pump roller, wherein a tubing is to be arranged between the stepped occlusion plate and the at least one pump roller, wherein the stepped occlusion plate has a specific configuration.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 29, 2020
    Inventors: Adrian Neil Bargh, John Paul James Betts
  • Patent number: 10865112
    Abstract: Modified substrates are provided having nano- or microscale wells, tracks, channels, pores or perforations. Also provided are methods of making the same.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: December 15, 2020
    Assignee: Lockheed Martin Corporation
    Inventors: Scott E. Heise, Han Liu, Jacob L. Swett, Michael J. Hiltabidle
  • Patent number: 10821404
    Abstract: A control method is provided for a filter system, which includes at least one filter element (2). The method includes continuously recording a total energy consumption (EG) during a filtration cycle (22) of the filter system. The total energy consumption (EG) includes at least of the energy consumption (EB) for a physical cleaning (24) and the energy consumption (EP) for the subsequent production cycle (23) up to a predefined, in particular current point in time. The method further includes computing a relative energy consumption (Erel) by way of division of the recorded total energy consumption (EG) by a net permeate volume (QN) which has been produced during the filtration cycle (22) up to the predefined point in time and starting a physical cleaning (24) in dependence on the relative energy consumption or of a characteristic value derived from this.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 3, 2020
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Dominik Dominiak, Jacob Appelt Vibe Svendsen, Christian Rasmussen, Rune Hoejsholt
  • Patent number: 10822635
    Abstract: Methods for determining whether certain compounds, in particular crystals, are present in a sample of a biological fluid that indicates an individual has a particular disease or condition, such as but not limited to gout, pseudogout or urinary tract stones. In some embodiments, the methods include the steps of digestion and filtration of a sample of synovial fluid in order to isolate, if present, monosodium urate monohydrate (MSU), calcium pyrophosphate dihydrate (CPPD), or calcium phosphate crystals from the sample, wherein the filtrate is analyzed with a Raman device to ascertain the presence and type of the crystals. Devices for performing steps of the method are disclosed.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: November 3, 2020
    Assignee: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Ozan Akkus, Mikhail Slipchenko, Anna Akkus, Shan Yang, Bolan Li
  • Patent number: 10814287
    Abstract: The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate; b) a first layer directly attached to the first major surface of the microfiltration membrane substrate; and c) a second layer directly attached to the first layer. The first layer includes a first polymeric binder and acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The second layer includes acid-sintered interconnected second silica nanoparticles arranged to form a continuous three-dimensional porous network. The present disclosure also provides a method for forming a multilayer article.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: October 27, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Chunjie Zhang, Hongying Jiang, Xuan Jiang, Naiyong Jing
  • Patent number: 10807890
    Abstract: The invention provides a water purification system or a water treatment system comprising carbon nanotubes, as well as methods for purifying or treating water using the systems of the invention.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: October 20, 2020
    Assignee: University of Iowa Research Foundation
    Inventors: David M. Cwiertny, Jason P. Haase
  • Patent number: 10800666
    Abstract: A filtration system has a filter unit and a holder module. The filter unit has an inlet side and an outlet side being opposite each other, and has at least one filter module. The holder module has at least one holder element and two tightening assemblies. The at least one holder element fixes the at least one filter module, and the tightening assemblies are respectively mounted at the inlet side and the outlet side of the filter unit. The quantities of the filter modules of the filter unit may be increased or decreased.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 13, 2020
    Assignee: PLAINLIV TAIWAN CO., LTD.
    Inventors: Kai-Chih Hsing, Wen-Yi Huang
  • Patent number: 10766800
    Abstract: The present invention relates to a process for the selective removal of nitrates from ground water using a hybrid nanofiltration (NF)—reverse osmosis (RO) filtration system. The process generates product water that is low in nitrate and can be used for drinking, irrigation and other purposes, as well as waste water that is relatively low in salinity and can be safely discarded to sewage systems and recycled, e.g., for irrigation purposes.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: September 8, 2020
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED
    Inventors: Michal Green, Ori Lahav, Razi Epsztein, Oded Nir
  • Patent number: 10736847
    Abstract: Methods and devices for producing a population of liposomes are provided. Aspects of the methods include applying a centrifugal force to a suspension of liposomes in a manner sufficient to pass the liposomes through a porous membrane to produce a population of liposomes. Aspects of the invention further include devices, systems and kits useful for performing the methods.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: August 11, 2020
    Assignee: Becton, Dickinson and Company
    Inventors: Oleg Guryev, Aaron J. Middlebrook, Marybeth Sharkey
  • Patent number: 10737006
    Abstract: A flow rate of blood through an implantable blood pump is determined based on a parameter related to the flow, such as a parameter related to thrust on the rotor of the pump. An amount of current supplied to the pump is used to determine each of a first flow rate value and second flow rate values. Each of the first and second flow rate values, in combination with the parameter related to thrust on the rotor of the pump, are used to calculate a flow rate of blood through the pump.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 11, 2020
    Assignee: HeartWare, Inc.
    Inventors: Fernando Casas, Justin Wolman, Carlos Reyes, Antonio Luiz Silva Ferreira
  • Patent number: 10734667
    Abstract: A negative electrode electrolyte solution which contains titanium ions, a chelating agent, and a catechol-based compound having a catechol structure is used for a negative electrode of a flow battery in which an electrolyte solution is circulated so as to perform charge and discharge.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: August 4, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Jiro Sakata
  • Patent number: 10730017
    Abstract: The disclosed technology relates to a water filtration and delivery system for a dialysis unit. The water nitration and delivery system including: a laminarizer, the laminizer producing a laminarizer flow; an ultrafiltration unit, the ultrafiltration unit being placed downstream and connected to the laminarizer, the ultrafiltration unit receiving the laminar flow from the laminarizer; and at least one carbon filter, the at least one carbon filter being placed downstream from the ultrafiltration unit, the at least one carbon filter receiving the laminar flow, wherein the laminar flow causes less stress on internal components of the ultrafiltration unit and the at least one carbon filter.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: August 4, 2020
    Inventor: Manuel S. Avakian
  • Patent number: 10729663
    Abstract: The present invention provides a sustained drug delivery system for the treatment of age-related macular degeneration (AMD), comprising corticosteroid encapsulated nanoparticles incorporated into a thermoreversible hydrogel. The corticosteroid may be triamcinolone acetate (TA), dexamethasone, or loteprednol etabonate (LE). The proposed drug delivery system is nontoxic to ARPE-19 (retinal pigment epithelium) cells and significantly reduces VEGF (vascular endothelial growth factor) expression as compared to solutions of the coticosteroids. The present invention provides sustained delivery of the corticosteroid to the posterior segment of the eye, reducing the frequency of intraocular injections necessary to maintain therapeutic concentrations.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: August 4, 2020
    Assignee: University of South Florida
    Inventors: Vijaykumar Bhadabhai Sutariya, Anjali A. Hirani, Yashwant V. Pathak
  • Patent number: 10717027
    Abstract: The present invention is a modified apparatus for wastewater recycling including a toilet tank device, a water amount control assembly, and a three-way pipe. The toilet tank device includes a filtering space provided with a filtering apparatus and a water level sensing apparatus and a device area provided with a pressurizing device, at least one filter, and a transfer pipe. The water amount control assembly includes a driving apparatus, a cleaning pipe group, and a wastewater transfer pipe group. When clean water is transferred to clean the filter, the clean water can be transferred through a combination of the cleaning pipe group and the pressurizing device with a water amount controlled by the driving apparatus, and wastewater passing through the filtering apparatus can be transferred through a combination of the wastewater transfer pipe group and the pressurizing device with a water output amount controlled by the driving apparatus.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 21, 2020
    Inventor: Zhen-Fa Guan
  • Patent number: 10675556
    Abstract: Liquid purification methods and apparatus are disclosed. An example apparatus includes a frame to define an interior space, the frame having an inner surface in contact with air of the interior space; a barrier positioned between a body of liquid and the interior space; and an absorber suspended from the frame to transfer liquid from the body of liquid into the interior space via an opening in the barrier.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 9, 2020
    Assignees: AT&T INTELLECTUAL PROPERTY I, L.P., AT&T MOBILITY II, LLC
    Inventors: Sheldon Kent Meredith, William C. Cottrill, Jeremy T. Fix
  • Patent number: 10668417
    Abstract: The invention relates to a device for extracting nucleic acid from a formalin-fixed and paraffin-embedded sample comprising a hollow body having an inlet port and an outlet port and a filter layer arranged within the hollow body, wherein the device is characterized in that the filter layer has an oil repellency of at least grade 5 according to the test method by AATCC-118 (1997). The invention further relates to a method for extracting nucleic acids from a formalin-fixed and paraffin-embedded sample, and a kit comprising the inventive device.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 2, 2020
    Assignee: AXAGARIUS GMBH & CO. KG
    Inventors: Florian Werner, Stefan Heymans, Thomas Zinn
  • Patent number: 10662084
    Abstract: The present disclosure provides systems for data center cooling and water desalination. In some aspects, the systems include a data center having a water cooling subsystem configured to receive cool water and output warm water and a desalination plant co-located with the data center and configured to receive and desalinate the warm water. Aspects of the invention also include methods for cooling a data center using a water cooling subsystem and desalinating water with a desalination plant that is co-located with the data center.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: May 26, 2020
    Assignee: DeepWater Desal LLC
    Inventor: Brent Richard Constantz
  • Patent number: 10603420
    Abstract: A blood treatment device includes a heat exchanger having a first space and a second space, with a first fluid flowing through the first space and a second fluid flowing through the second space. The heat exchanger has a membrane which separates the first space from the second space, with the membrane forming a component of a capacitor having two capacitor plates, between which the membrane is located. A monitoring means is connected to the capacitor, and is configured to detect an electrical property of the capacitor, for the purpose of detecting a fluid leak from the first space to the second space.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: March 31, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Reiner Spickermann, Klaus Balschat, Tilman Staeblein, Arne Peters, Peter Kloeffel
  • Patent number: 10596524
    Abstract: The present invention relates to a hollow fiber membrane. Provided is a cylindrical hollow fiber membrane having an inside in which a hollow part is formed along an axial direction, the hollow fiber membrane including: a first layer positioned at the outermost part so as to be exposed to the outside, and having pores formed therein to make raw water enter and leave via the pores; a second layer formed on the inside of the first layer to filter out contaminants from raw water as the raw water passes through; and a third layer to optionally separate or filter out contaminants from the raw water introduced through the second layer or introduced from the hollow part, wherein the first layer to the third layer are integrally formed; the porosity of the first layer is greater than the porosity of the third layer; and porosities are gradually decreased from the first layer to the third layer.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: March 24, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jooyoung Park, Jongdeok Kim, Junseok Lee
  • 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: 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: 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: 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: 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: 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: 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: 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: 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