Patents by Inventor Joydeep Dutta

Joydeep Dutta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12291789
    Abstract: An electrode and a system for electrochemical hydrogen production from water oxidation and proton reduction can include covalently attaching a ruthenium complex onto a conducting material is provided by fluorine-doping a carbon cloth (FCC) and use this as an anode and/or a cathode in an electrochemical cell. The electrode for use in electrochemical hydrogen production from water oxidation is achieved by that the electrode comprises a ruthenium complex covalently attached onto a conducting material having a pyridine linker with a —CH2—CH2 spacer unit. The system for electrochemical hydrogen production from water oxidation and proton reduction can include at least an electrochemical cell having two electrodes, an anode and/or a cathode, where the electrodes comprise a ruthenium complex covalently attached onto a conducting material, is achieved by that the conducting material is made by fluorine-doped carbon cloth (FCC).
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: May 6, 2025
    Assignee: HYENGEN AB
    Inventors: Oscar Verho, Biswanath Das, Bjorn Akermark, Joydeep Dutta
  • Publication number: 20250027212
    Abstract: An electrochemical system comprising at least one half-cell (1, 100) adapted for holding a first electrolyte, a first electrocatalyst (10) arranged on a current collector (11) forming a first working electrode, and a first auxiliary electrode material (12) arranged on a second current collector (13), and optionally a second half-cell (2, 200) adapted for holding a second electrolyte, a second electrocatalyst (20) arranged on a current collector (21) forming a second working electrode, and a second auxiliary electrode material (20) arranged on a current collector (21), wherein the working electrode and the auxiliary electrode are connected to an external circuit including a power supply (300) and a control unit (400), and wherein the polarity of the power supply determines whether the working electrode acts as a cathode or an anode, thus creating a cathodic or an anodic half-cell. A method for electrochemical production of chemicals and gases, in particular hydrogen, using said cell or system of cells.
    Type: Application
    Filed: December 7, 2022
    Publication date: January 23, 2025
    Inventors: Joydeep Dutta, Esteban Alejandro Toledo Carrillo
  • Publication number: 20240328009
    Abstract: An electrode and a system for electrochemical hydrogen production from water oxidation and proton reduction can include covalently attaching a ruthenium complex onto a conducting material is provided by fluorine-doping a carbon cloth (FCC) and use this as an anode and/or a cathode in an electrochemical cell. The electrode for use in electrochemical hydrogen production from water oxidation is achieved by that the electrode comprises a ruthenium complex covalently attached onto a conducting material having a pyridine linker with a —CH2—CH2 spacer unit. The system for electrochemical hydrogen production from water oxidation and proton reduction can include at least an electrochemical cell having two electrodes, an anode and/or a cathode, where the electrodes comprise a ruthenium complex covalently attached onto a conducting material, is achieved by that the conducting material is made by fluorine-doped carbon cloth (FCC).
    Type: Application
    Filed: November 24, 2022
    Publication date: October 3, 2024
    Inventors: Oscar VERHO, Biswanath DAS, Bjorn AKERMARK, Joydeep DUTTA
  • Patent number: 12030795
    Abstract: A device (10) for capacitive deionization of an aqueous media containing dissolved ion species, said device comprising a cell with a first primary electrode (2) and a second primary electrode (3) arranged opposite the first primary electrode (2) and preferably separated by at least one non-conductive spacer (4, 4?). A third electrode (7) is arranged between the first and the second electrode. The third electrode (7) is grounded whereas the first and the second electrodes are polarized versus the grounded third electrode.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: July 9, 2024
    Assignee: Stockholm Water Technology AB
    Inventors: Joydeep Dutta, Karthik Laxman Kunjali
  • Publication number: 20200180982
    Abstract: A device (10) for capacitive deionization of an aqueous media containing dissolved ion species, said device comprising a cell with a first primary electrode (2) and a second primary electrode (3) arranged opposite the first primary electrode (2) and preferably separated by at least one non-conductive spacer (4, 4?). A third electrode (7) is arranged between the first and the second electrode. The third electrode (7) is grounded whereas the first and the second electrodes are polarized versus the grounded third electrode.
    Type: Application
    Filed: June 20, 2018
    Publication date: June 11, 2020
    Inventors: Joydeep Dutta, Karthik Laxman Kunjali
  • Patent number: 9751779
    Abstract: The three-electrode structure for capacitive deionization desalination is a system for desalination of a fluid containing charged species and a process thereof. A capacitive deionization cell has at least three electrodes, wherein the first electrode is connected to either the positive or the negative potential, a second electrode, which is connected to a potential equal in magnitude but having a polarity opposite to that of the first electrode, and a third central electrode, which is placed between the first and second electrodes and is connected to a reference potential.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: September 5, 2017
    Assignee: SULTAN QABOOS UNIVERSITY
    Inventors: Karthik Laxman Kunjali, Joydeep Dutta
  • Patent number: 9682346
    Abstract: A nanostructured zinc oxide membrane for removing oil from water includes a membrane and a plurality of zinc oxide nanorods on at least one surface of the membrane. The nanorods can cover less than about 40% of the surface of the membrane. Air pockets can be formed in spaces between adjacent nanorods. The nanostructured zinc oxide membranes can be used to separate oil from an oil-water mixture in a cost-effective and energy efficient manner.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: June 20, 2017
    Assignee: SULTAN QABOOS UNIVERSITY
    Inventors: Joydeep Dutta, Myo Tay Zar Myint
  • Publication number: 20050141734
    Abstract: An apparatus for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Application
    Filed: February 28, 2005
    Publication date: June 30, 2005
    Inventors: Christoph Widmer, Joydeep Dutta
  • Patent number: 6863151
    Abstract: An apparatus for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: March 8, 2005
    Assignee: Phonak AG
    Inventors: Christoph Widmer, Joydeep Dutta
  • Patent number: 6827178
    Abstract: A method for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: December 7, 2004
    Assignee: Phonak AG
    Inventors: Christoph Widmer, Joydeep Dutta
  • Publication number: 20040201139
    Abstract: A method for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a fluid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 14, 2004
    Applicant: Phonak AG
    Inventors: Christoph Widmer, Joydeep Dutta
  • Publication number: 20040026163
    Abstract: An apparatus for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 12, 2004
    Inventors: Christoph Widmer, Joydeep Dutta
  • Publication number: 20030155173
    Abstract: A method for manufacturing ear devices that are individualized for individual. Data of the three-dimensional shape of each individual's area of application for a haring device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 21, 2003
    Inventors: Christoph Widmer, Joydeep Dutta
  • Patent number: 6540045
    Abstract: A method for manufacturing ear devices that are individualized for individuals. Data of the three-dimensional shape of each individual's area of application for a hearing device is provided. Individual shells for the hearing devices are construed by respectively depositing commonly a layer of one of a liquid and a powderous material and solidifying by a laser arrangement in the layer individually shaped layers of the individual shells, thereby controlling the laser arrangement with the data.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: April 1, 2003
    Assignee: Phonak AG
    Inventors: Christoph Widmer, Joydeep Dutta