Patents Examined by Katherine Zalasky McDonald
  • Patent number: 10954150
    Abstract: A system includes an ion exchange softener fluidly coupled to a wastewater treatment system. The first ion exchange softener may receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream including the plurality of minerals and a third brine stream. The system also includes a mineral removal system disposed downstream from the ion exchange softener and that may receive the second brine stream and to generate a sodium chloride (NaCl) brine stream and an acid and caustic production system disposed downstream from and fluidly coupled to the mineral removal system. The acid and caustic production system includes a first electrodialysis (ED) system that may receive the NaCl brine stream from the mineral removal system and to generate hydrochloric acid (HCl) and sodium hydroxide (NaOH) from the NaCl brine stream.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 23, 2021
    Assignee: Enviro Water Minerals Company, Inc.
    Inventor: Paul Steven Wallace
  • Patent number: 10954151
    Abstract: A drinking water treatment system is disclosed. The system includes an ultraviolet (UV) light source and an adsorption medium positioned downstream of the UV light source. The UV light activates residual chlorine in water. The adsorption medium is configured to adsorb any remaining free chlorine from the water. Drinking water treatment systems are disclosed for point-of-use (POU) applications, such as tap-mounted countertop, under-counter, and/or commercial bottling applications, and for point-of-entry (POE).
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: March 23, 2021
    Inventor: Hugh Stephen McDonald
  • Patent number: 10947135
    Abstract: A fluid purification system has cells whose purifying capability can be regenerated. Some of the cells are arranged in series to reach a high level of purification. An automatic valve network is controlled to cycle the cells in a way that levels the loads on each, thereby maximizing the service interval for replacing expired cells, enabling all of the cells to be replaced at the same time after having each contributing approximately equally to the purification load, and operated such that at any one time, at least one cell is regenerated so as to enable continuous up-time.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: March 16, 2021
    Assignee: NxStage Medical, Inc.
    Inventors: Joseph E. Turk, Jr., William K. Weigel, Goetz Friederichs, Jeffery B. Hover
  • Patent number: 10947131
    Abstract: A method of water treatment includes flowing water that includes nitrogen and phosphorus compounds through a sorption media composition within at least one chamber of a water treatment system. The composition comprises iron filings comprising at least 5 volume (vol) % of the composition, sand particles comprising at leak 10 vol % of the composition, and clay particles comprising at least 2 vol % of the composition. The iron filings, sand particles, and clay particles are mixed together. During the flowing, the clay particles attract the nitrogen and phosphorus compounds, which become absorbed onto a surface of the iron filings and the clay, resulting in a removal of the nitrogen and phosphorus compounds and the generation of reaction products. Nitrogen and phosphorus are then recovered from the reaction products.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 16, 2021
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Ni-Bin Chang, Martin P. Wanielista
  • Patent number: 10943708
    Abstract: A process for the separation of 99mTc from molybdenum targets is described. The method for separation of 99mTc isotope from molybdenum targets includes: i) providing an initial multicomponent mixture of elements, the mixture containing 99mTc; ii) dissolving the multicomponent mixture of elements with an oxidizing agent to oxidize the mixture of elements; iii) heating the mixture of elements at a temperature sufficiently high enough to sublimate a vaporized compound containing 99mTc; iv) condensing the vaporized compound containing 99mTc to form a reaction product; v) adding a base to the condensed reaction product to dissolve the 99mTc containing reaction product to form sodium pertechnetate (Na99mTcO4); and vii) purifying the crude solution of sodium pertechnetate Na99mTc04 using column chromatography to provide the 99mTc isotope as a radiochemical compound.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 9, 2021
    Inventors: Richard Ray Johnson, William Z. Gelbart, Brian Abeysekera, Lidia Matei, Glenn McRae
  • Patent number: 10933399
    Abstract: A method of removing barium from a liquid includes adding a two-dimensional metal carbide water contaminant adsorbent to water to adsorb contaminants, such as barium (II), from the liquid. The two-dimensional metal carbide water contaminant adsorbent is in the form of at least one MXene, having the formula Mn+1Xn, where n=1, 2 or 3, M is an early transition metal, such as scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo) or the like, and X is either carbon or nitrogen. The MXene may be Ti3C2. The liquid may be, for example, at least one water by-product from at least one oilfield reservoir, such as produced water, co-produced water or a combination thereof.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: March 2, 2021
    Inventors: Sarper Sarp, Muataz A. Hussien, Nidal Hilal, Ahmed Mohammed Fard, Marwan K. Khraisheh, Tarik Rhadfi, Hughes Preud'Homme
  • Patent number: 10928365
    Abstract: The present invention relates to axial flow chromatography columns, methods for separating one or more analytes in a liquid by the use of such columns, and systems employing such columns. The column comprises a first port and a second port the first port and said second port being at essentially the same level or elevation above the level of the bed space on the chromatography column.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 23, 2021
    Assignee: Cytiva BioProcess R&D AB
    Inventor: Klaus Gebauer
  • Patent number: 10928368
    Abstract: The present invention relates to a method for measuring a polymer modification ratio, and more particularly, to a method for measuring a polymer modification ratio, which includes preparing a first solution by dissolving a polymer mixture containing a modified polymer and an unmodified polymer in a first solvent, injecting the first solution into a column filled with an adsorbent, adsorbing the modified polymer onto the adsorbent, and eluting the first solution in which the unmodified polymer is dissolved, transferring the eluted first solution to a detector, injecting a second solvent into the column to elute the second solution in which the adsorbed modified polymer is dissolved, and transferring the eluted second solution to the detector.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: February 23, 2021
    Inventors: Heung Yeal Choi, No Ma Kim, Yu Jin Kim
  • Patent number: 10905978
    Abstract: A filter arrangement with a top element and a bottom element and a filter element therebetween captures oversized particles on the upper surface of the filter element and tangentially rinses these particles using an elution fluid to provide a concentration of particles in a relatively low volume of fluid for further analysis. A configuration using a slider valve may also be utilized. Additionally, an arrangement of supply and receiving containers may be used to minimize the number of containers required. A mass flow meter may be incorporated to measure the flow of elution fluid. Finally, a wash stage of the filtering process may be used to introduce stain onto the particles for further analysis, such as that associated with Gram staining and these stained particles may be further analyzed.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: February 2, 2021
    Assignee: POCARED Diagnostics LTD.
    Inventors: Jonathan Gurfinkel, Gal Ingber
  • Patent number: 10894731
    Abstract: A water purification system that generates ozone and passes the ozone through stored purified water to reduce the growth and/or presence of bacteria, organisms, and/or other undesirable components in purified water.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 19, 2021
    Inventor: Bruce D. Burrows
  • Patent number: 10888804
    Abstract: The present invention relates to a method for separating and washing microparticles via a stratified co-flow of non-Newtonian fluid and Newtonian fluid, wherein the Newtonian fluid as well as the non-Newtonian fluid may flow into a transfer channel formed in a fluid chip at a predetermined flow rate ratio matching with an effective diameter of the target particles contained in the non-Newtonian fluid, thereby inducing a change in positions of particle focusing points with respect to the target particles within the stratified co-flow thereof formed in the transfer channel. As a result, it is possible to more easily separate only the target particles among the microparticles contained in the non-Newtonian fluid toward the Newtonian fluid without using an additional device and human power, or transfer the target particles contained in the non-Newtonian fluid toward the Newtonian fluid for washing the same.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 12, 2021
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hyung-Jin Sung, Byung-Hang Ha
  • Patent number: 10889688
    Abstract: Cross-linked polymer resins and related salts, solvates, tautomers or stereoisomers are described herein. The cross-linked polymer resins may comprise monomer units of N,N-diallyl aminoalkylphosphonate, a hydrophobic pendant, a tetraallylpiperazinium cross-linker, and sulfur dioxide. A method for producing the cross-linked polymer resins is described. The cross-linked polymer resins may be used as adsorbent materials for the removal of heavy metal ions and contaminant dyes from aqueous solutions. Used cross-linked polymer resins may be removed from solution, cleaned, and reused while maintaining adsorption capacity.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: January 12, 2021
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Tawfik Abdo Saleh Awadh, Shaikh A. Ali, Ihsan B. Rachman
  • Patent number: 10881983
    Abstract: A method for the extraction of natural ethyl maltol from passionflower plants is described. The plant material is extracted with a methanol based solvent and the natural ethyl maltol is recovered by column purification using a size exclusion purification column.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: January 5, 2021
    Assignee: The Winning Combination
    Inventor: Shazad Bukhari
  • Patent number: 10881985
    Abstract: Systems and methods for automatically packing resin into and unpacking resin from a reusable separation column for sample analysis are described. A method embodiment includes, but is not limited to, introducing a slurry of resin to a reusable sample separation column to pack the reusable column with resin; introducing a sample solution to the reusable sample separation column; and unpacking the resin from the reusable sample separation column with a flow of liquid unpacking reagent and gaseous material.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: January 5, 2021
    Inventor: Michael Paul Field
  • Patent number: 10881986
    Abstract: Liquid chromatography techniques are disclosed. Specifically, the liquid chromatography technique includes providing a liquid chromatography system having a coated metallic fluid-contacting element, and transporting a fluid to contact the coated metallic fluid-contacting element. Conditions for the transporting of the fluid are selected from the group consisting of the temperature of the fluid being greater than 150° C., pressure urging the fluid being greater than 60 MPa, the fluid having a protein-containing analyte incompatible with one or both of titanium and polyether ether ketone, the fluid having a chelating agent incompatible with the one or both of the titanium or the polyether ether ketone, and combinations thereof.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 5, 2021
    Assignee: SILCOTEK CORP.
    Inventors: Jesse Bischof, Lucas D. Patterson, Gary Barone, Min Yuan, David A. Smith
  • Patent number: 10871720
    Abstract: In embodiments of the present disclosure, a vibrator is used to generate a vibration wave with a variable frequency that can agitate and facilitate the circulation of the processing fluids, thereby enhancing the uniformity and efficiency of the resulting semiconductor device features, the vibrator may be a piezoelectric vibrator or other similar vibrators. In some embodiments, the vibration of the processing fluids can facilitate the processing fluids in circulating in and out of narrow channels or features, or the vibration of the processing fluids can facilitate the bubbling out of the microbubbles entrapped in the processing liquid or entrapped between the surface of the semiconductor wafer and the processing liquid. In another embodiment, the vibrations generated by the vibrator have vibration waves with a variable frequency to avoid resonance that may damage the semiconductor wafer and the features thereon.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: December 22, 2020
    Inventors: Astha Sharma, Chia-Hung Lai, Hsin-Kuo Chang, Jaw-Lih Shih, Hong-Hsing Chou
  • Patent number: 10870069
    Abstract: This invention discloses an apparatus for extraction of constituents with extraction fluid present in a substance by means of an extraction fluid constituted by a water heated to high temperature known as super-heated water (SHW). According to this invention, in the heater the water is heated to a subcritical point and introduced to the extractor contacting takes place between the substance and the extraction fluid to dissolve the constituents in the fluid. The fluid leaving the extractor is then cooled in a cooler. The process is performed under constant counter pressure given by a Nitrogen tank. Separation of the volatile components is done in one or multistage countercurrent liquid-liquid system with any volatile solvent with proper solubility of the constituents or in a distillation column. distillation column.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: December 22, 2020
    Inventor: George Stantchev
  • Patent number: 10864460
    Abstract: A variety of inorganic-organic hybrid materials and various methods for preparing and using the same are described. The hybrid materials are graphene or graphitic materials populated with organic molecules and may have a variety of surface defects, pits or three-dimensional architecture, thereby increasing the surface area of the material. The hybrid materials may take the form of three dimensional graphene nanosheets (3D GNS). If the organic molecules are enantiospecific molecules, the hybrid materials can be used for chiral separation of racemic mixtures.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 15, 2020
    Assignee: UNM Rainforest Innovations
    Inventors: Alexey Serov, Plamen B Atanassov, Nikolai Kalugin, Liliya V Frolova
  • Patent number: 10859542
    Abstract: A system, module and method for continuous or batch single-pass countercurrent tangential chromatography are disclosed for bind/elute and negative chromatography applications. The system includes binding, washing, elution (for bind/elute), regeneration, and equilibration single-pass modules. The resin slurry flows in a continuous single pass at steady-state through each module, while corresponding buffers flow countercurrent to the slurry facilitating efficient product and impurity extraction. The module and system include retentate pumps for better process robustness and control. A resin tank configured to be reversibly isolated from the single-pass modules facilitates a closed and disposable system.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: December 8, 2020
    Assignee: CHROMATAN INC.
    Inventor: Oleg Shinkazh
  • Patent number: 10843165
    Abstract: Methods, compositions, devices and kits having a novel chromatographic material are provided herein for separating and identifying organic molecules and compounds, for example molecules and compounds containing electron rich functional groups such as carbon-carbon double bonds. The methods, compositions, and kits include a metal-thiolate chromatographic medium (MTCM) with a sulfur-containing functional group or a metal-selenolate chromatographic medium (MSCM) comprising a selenium-containing functional group covalently attached to a support medium, such that the sulfur-containing functional group or selenium-containing functional group is bound to at least one metal atom. The MTCM and/or MSCM has affinity and specificity to compounds having one or more carbon-carbon double bonds, and performs a highly efficient and rapid separation of samples yielding non-overlapping peaks of purified materials compared to traditional media.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: November 24, 2020
    Assignee: Brown University
    Inventors: Yongsong Huang, Jose C. Aponte, Rafael Tarozo, James Dillon