Patents Examined by Salil Jain
  • Patent number: 11982007
    Abstract: There are provided an electrolyzer gasket, which can accommodate and hold a separator inside an electrolyzer by a simple handling, can more surely prevent leakage of an electrolyte and an electrolytically generated gas from the inside of the electrolyzer, can keep the separator in such a state that the separator is held at a position that is in contact with one of electrodes and is located along the electrode and therefore can suppress damage of the separator and makes it possible to use the separator stably for a long period of time, and an electrolyzer.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 14, 2024
    Assignee: DE NORA PERMELEC LTD
    Inventor: Akiyoshi Manabe
  • Patent number: 11964884
    Abstract: The present application relates to a system for removal of nitrate from water. The system includes a first reactor comprising a porous oxide-derived silver electrode (OD-Ag) for electrocatalytic reduction of nitrate (NO3?) to nitrite (NO2?) and a second reactor comprising a Pd-based catalyst for catalytic reduction of nitrite (NO2?). Also disclosed is a method of removing nitrate from water.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 23, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Wenzhen Li, Hengzhou Liu, Yifu Chen
  • Patent number: 11959185
    Abstract: A process is disclosed for the electro-refinement of titanium aluminides to produce titanium-aluminum master alloys which process is effective even in the presence of substantial amounts of aluminum and in the presence of ten (10) or more weight percent oxygen in the material(s) to be refined. The process is likewise effective without the addition of titanium chlorides or other forms of soluble titanium to the electrolyte bath comprising halide salts of alkali metals or alkali-earth metals or a combination thereof.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 16, 2024
    Assignee: UNIVERSAL ACHEMETAL TITANIUM, LLC
    Inventors: James R. Cox, Chanaka L. DeALWIS, Benjamin A. Kohler, Michael G. Lewis, Juliane B. Kluck
  • Patent number: 11945737
    Abstract: Various aspects described herein relate to electrochemical devices, e.g., for separation of one or more target organic or inorganic molecules (e.g., charged or neutral molecules) from solution, and methods of using the same. In particular embodiments, the electrochemical devices and methods described herein involve at least one redox-functionalized electrode, wherein the electrode comprises an immobilized redox-species that is selective toward a target molecule (e.g., charged molecule such as ion or netural molecule). The selectivity is based on a Faradaic/redox-activated chemical interaction (e.g., directional hydrogen binding) between the oxidized state of the redox species and a moiety of the target molecule (e.g., charged molecule such as ion or netural molecule).
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: April 2, 2024
    Assignee: Massachusetts Institute of Technology
    Inventors: Xiao Su, Demetra S. Achilleos, Trevor Alan Hatton
  • Patent number: 11939683
    Abstract: The present disclosure provides a method and system for producing antimicrobial compositions comprising transition metal ions which are generated electrolytically in aqueous solution; chelating agent and excipients; wherein the said ionic species thereby impart stability and longer shelf life and long-term efficacy. Owing to the neutral pH, colorless, odorless, tasteless, non-caustic, non-corrosive nature, the composition of example embodiments shall be used as surface disinfectant and food contact sanitizer and provides an unparalleled combination of high efficacy and low toxicity with instant kill and long-term efficacy. The specific combination of certain metals provides the ability to be extremely broad spectrum and thus works against virus, bacteria, fungi, mold, mildew and antibiotic resistant species as well.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: March 26, 2024
    Inventor: Prerna Goradia
  • Patent number: 11939247
    Abstract: A method by which an environmental energy (e.g., wave energy) is harvested, converted into electrical power, and thereafter used to electrolyze seawater into hydrogen and chlorine gases. Those gases are recombined into hydrogen chloride from which is formed hydrochloric acid solution which is diluted and deposited at a depth sufficient to ensure its neutralization and sequestration for a significant period of time (e.g., for over a millennium). By removing chloride ions from a portion of the sea adjacent to its upper surface and depositing them into a portion of the sea more adjacent to its bottom, acidity is shifted from the surface to base of the sea, and the surface ocean is given a greater ability to absorb and buffer atmospheric carbon dioxide without a corresponding increase in acidity.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: March 26, 2024
    Assignee: Lone Gull Holdings, Ltd.
    Inventors: Garth Alexander Sheldon-Coulson, Brian Lee Moffat
  • Patent number: 11932951
    Abstract: In a method for generating ammonia synthesis gas by electrolysis, comprising feeding a mixture of steam and compressed air into the first of a series of electrolysis units and passing the outlet from one electrolysis unit to the inlet of the next electrolysis unit together with air, the electrolysis units are run in endothermal mode and the nitrogen part of the synthesis gas is provided by burning the hydrogen produced by steam electrolysis by air in or between the electrolysis units. The electrolysis units are preferably solid oxide electrolysis cell (SOEC) stacks.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: March 19, 2024
    Assignee: HALDOR TOPSØE A/S
    Inventor: John Bøgild Hansen
  • Patent number: 11932560
    Abstract: A membraneless electrochemical device comprises a fluid feed stream input to the membraneless electrochemical cell, a first electrode, and a second electrode. The first electrode comprises a first redox-active material configured to have a proton-coupled oxidation reaction with a first portion of the fluid feed stream, and the second electrode comprises a second redox-active material configured to have a proton-coupled reduction reaction with a second portion of the fluid feed stream. The first portion and the second portion of the fluid feed stream are separated. A first effluent stream comprises the first portion and has a first pH, and a second effluent stream comprises the second portion and has a second pH, different from the first pH.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: March 19, 2024
    Assignee: XEROX CORPORATION
    Inventors: Eugene S. Beh, Mahati Chintapalli, Stephen Matthew Meckler
  • Patent number: 11925737
    Abstract: The present disclosure provides devices and methods of using same for cleansing a solution (e.g., a salt or used dialysis solution) of urea via electrooxidation, and more specifically to cleansing a renal therapy solution/dialysis solution of urea via electrooxidation so that the renal therapy solution/dialysis solution can be used or reused for treatment of a patient. In an embodiment, a device for the removal of urea from a fluid having urea to produce a cleansed fluid includes a urea decomposition unit and an electrodialysis unit.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: March 12, 2024
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Yuanpang Samuel Ding, Cristian Adolfo Menzel Bueno, Rosa Yeh
  • Patent number: 11912589
    Abstract: Photochemical energy conversion is more efficient when a single light-absorbing unit is split into multiple light-absorbing units (N) that are each 1/N as thick as the single light-absorbing unit and thus use the same amount of material as the single light-absorbing unit. For electrocatalytic parameters relevant to water electrolysis, the maximum efficiency for solar-to-fuel conversion from a 1.75 eV bandgap material increases from approximately 1% for a single light-absorbing unit to greater than 20% for 128 identical stacked light-absorbing units. Alterations in utilization of photons results in a better match of the light-absorber power output to the load of the chemical transformation and in the case of high-quality light-absorbers there is an added benefit from radiative coupling between the light-absorbing units via photon recycling.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 27, 2024
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Shane Ardo, Samuel Thomas Keene, Gabriel S. Phun
  • Patent number: 11912569
    Abstract: The present invention provides a method for manufacturing a chlorous acid aqueous solution using salt as a raw material. The present invention provides a method for manufacturing a chlorous acid aqueous solution, the method including 1) a step for electrolyzing salt and obtaining a chlorate or an aqueous solution thereof, and 2) a step for reducing the chlorate or aqueous solution thereof and manufacturing an aqueous solution including chlorous acid. The method for manufacturing a chlorous acid aqueous solution includes a step for mixing an inorganic acid or an inorganic acid salt as a simple substance or two or more types thereof with the aqueous solution including chlorous acid, and then mixing any of an inorganic acid, an inorganic acid salt, an organic acid, or an organic acid salt as a simple substance or two or more types thereof.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 27, 2024
    Assignee: HONBUSANKEI CO., LTD.
    Inventor: Hisataka Goda
  • Patent number: 11904270
    Abstract: The invention relates to a regeneration system for a carbon-rich amine solution produced in carbon dioxide capture from a mixed gas and a method for using the same. This regeneration system is composed of a bipolar membrane electrodialysis apparatus and a carbon dioxide removal apparatus, wherein the bipolar membrane electrodialysis apparatus is composed of a bipolar membrane electrodialysis membrane stack fixed between an anode plate and a cathode plate, the carbon dioxide removal apparatus is composed of one or more hollow fiber membrane contactors, the inlet of the carbon dioxide removal apparatus is fluidly connected with the outlet of the acid chamber of the bipolar membrane electrodialysis apparatus, the outlet of the carbon dioxide removal apparatus is fluidly connected with the acid solution storage tank, and carbon dioxide gas removed by the carbon dioxide removal apparatus is collected in a carbon dioxide storage tank.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: February 20, 2024
    Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Tongwen Xu, Chenxiao Jiang, Xia Chen, Rongqiang Fu, Zhaoming Liu
  • Patent number: 11898255
    Abstract: The method of producing hydrogen peroxide using nanostructured bismuth oxide is an electrochemical process for producing hydrogen peroxide using a cathode formed as oxygen-deficient nanostructured bismuth oxide deposited as a film on the surface of a conducting substrate. An anode and the cathode are immersed in an alkaline solution saturated with oxygen in an electrolytic cell. An electrical potential is established across the cathode and the anode to initiate electrochemical reduction of the oxygen in the alkaline solution to produce hydrogen peroxide by oxygen reduction reaction.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 13, 2024
    Assignee: KING SAUD UNIVERSITY
    Inventors: Maged N. Shaddad, Prabhakarn Arunachalam, Abdullah M. Almayouf
  • Patent number: 11884562
    Abstract: Apparatus and method for electrolysis of urea is capable of removing urea from waste-water generated by human urine or agricultural run-off while simultaneously producing cleaner water and hydrogen gas. The apparatus and method employ at least one water reduction electrode located close to at least one urea oxidation electrode. The water reduction electrode operates to generate a locally high pH such that the urea oxidation electrode operates in a locally high pH envelope where it can perform its reaction efficiently to break down the urea with little or no impact on the pH of the bulk solution.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: January 30, 2024
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: David R. Baker
  • Patent number: 11882920
    Abstract: Devices and methods for styling hair, and in particular, to devices and methods for styling hair using electrolysis are described herein. A method for styling hair includes arranging a section of hair between a first electrode and a second electrode. The section of hair is contacted with an electrolyte before being arranged between the first and second electrodes, after being arranged between the first and second electrodes, and/or concurrently with being arranged between the first and second electrodes. The method further includes causing the first electrode to have a first negative potential, and causing the second electrode to have a second potential, such that the absolute value of the first negative potential is greater than the absolute value of the second potential, and such that the difference in electrical potential between the first electrode and the second electrode creates an electrolysis zone between the first electrode and the second electrode.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 30, 2024
    Assignee: MIRAKEL TECHNOLOGIES, INC.
    Inventors: Suman Lal Chirammal Sugunan, Pradeep Paul Panengad
  • Patent number: 11807948
    Abstract: The method of producing hydrogen peroxide using nanostructured bismuth oxide is an electrochemical process for producing hydrogen peroxide using a cathode formed as oxygen-deficient nanostructured bismuth oxide deposited as a film on the surface of a conducting substrate. An anode and the cathode are immersed in an alkaline solution saturated with oxygen in an electrolytic cell. An electrical potential is established across the cathode and the anode to initiate electrochemical reduction of the oxygen in the alkaline solution to produce hydrogen peroxide by oxygen reduction reaction.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: November 7, 2023
    Assignee: KING SAUD UNIVERSITY
    Inventors: Maged N. Shaddad, Prabhakarn Arunachalam, Abdullah M. Almayouf
  • Patent number: 11806663
    Abstract: The present disclosure generally relates to apparatuses, systems, and methods for separating a target species (e.g., CO2) from a gas mixture (e.g., gas stream) via an electrochemical process.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: November 7, 2023
    Assignee: Massachusetts Institute of Technology
    Inventors: Sahag Voskian, Trevor Alan Hatton
  • Patent number: 11787711
    Abstract: Disclosed are a deionization electrode having ion adsorption layers and ion selective membranes formed at opposite ends thereof, an electrode module configured such that deionization electrodes are stacked, and a deionization unit having electrode modules received therein to separate ions from water. The deionization electrode includes a current collector configured to have a circular flat structure, the current collector having a first hole formed therein, a first porous adsorption layer located on one surface of the current collector, the first adsorption layer being configured to have a flat structure, a second porous adsorption layer located on the other surface of the current collector, the second adsorption layer being configured to have a flat structure, a first ion selective membrane located on the surface of the first adsorption layer, and a second ion selective membrane located on the surface of the second adsorption layer.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 17, 2023
    Assignee: SIONTECH CO., LTD.
    Inventors: Kyung Seok Kang, Kyung Han Lee, Nam Soo Park, Hyun Woo Yoo, Bo Hyung Ryoo
  • Patent number: 11780737
    Abstract: A device and process for the separate removal of oppositely charged ions from electrolyte solutions and recombining them to form new chemical compositions. The invention provides the ability to create multiple ion flow channels and then form new chemical compositions therefrom. The process is accomplished by selectively combining oppositely charged ions of choice from different electrolyte solutions via the capacitive behavior of high electrical capacitance electrodes confined in insulated containers. Industrial plants employing the inventive process can have the flexibility to produce needed industrial chemical compounds such as Soda Ash, Caustic Soda, hydrochloric acid and chlorine gas, based on market demand, and can be located near points of consumption to significantly reduce transportation costs.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: October 10, 2023
    Assignee: IONIC SOLUTIONS LTD.
    Inventor: Azaroghly Yazdanbod
  • Patent number: 11780754
    Abstract: The present invention provides return flow ICP and ED systems and methods that can be used for water desalination and/or concentration of a wide range of target brine and other aqueous and contaminated streams.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 10, 2023
    Assignee: Massachusetts Institute of Technology
    Inventors: Jongyoon Han, Junghyo Yoon