Patents by Inventor Yuri Katzman

Yuri Katzman 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: 6878664
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: April 12, 2005
    Assignee: Medis El Ltd.
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Maria Khidekel, Mikhail Khidekel
  • Patent number: 6773470
    Abstract: A fuel composition for fuel cells includes a polar solvent such as water, a first portion of a first fuel dissolved in the solvent at a saturated concentration, and a second portion of the first fuel suspended in the solvent to serve as a reservoir of fuel as the dissolved portion is consumed. Preferably, the first fuel is a hydride such as NaBH4. Optionally, the fuel composition also includes a second fuel such as an alcohol that also controls the solubility of the first fuel in the solvent, inhibits decomposition of the first fuel and stabilizes the suspension. Preferably, the fuel composition also includes an additive such as an alkali for stabilizing the first fuel.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: August 10, 2004
    Assignee: More Energy Ltd.
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Nikolai Fishelson, Zina Lurie
  • Patent number: 6730350
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 4, 2004
    Assignee: Medis El Ltd.
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Mikhail Khidekel
  • Publication number: 20030099876
    Abstract: A fuel composition for fuel cells includes a polar solvent such as water, a first portion of a first fuel dissolved in the solvent at a saturated concentration, and a second portion of the first fuel suspended in the solvent to serve as a reservoir of fuel as the dissolved portion is consumed. Preferably, the first fuel is a hydride such as NaBH4. Optionally, the fuel composition also includes a second fuel such as an alcohol that also controls the solubility of the first fuel in the solvent, inhibits decomposition of the first fuel and stabilizes the suspension. Preferably, the fuel composition also includes an additive such as an alkali for stabilizing the first fuel.
    Type: Application
    Filed: August 29, 2002
    Publication date: May 29, 2003
    Applicant: MORE ENERGY LTD.
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Nikolai Fishelson, Zina Lurie
  • Patent number: 6479181
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: November 12, 2002
    Assignee: Medis El Ltd.
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Mikhail Khidekel
  • Publication number: 20020132040
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Application
    Filed: January 16, 2001
    Publication date: September 19, 2002
    Applicant: MEDIS-EL LTD
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Mikhail Khidekel
  • Publication number: 20020132157
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Application
    Filed: January 16, 2001
    Publication date: September 19, 2002
    Applicant: MEDIS-EL LTD
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Mikhail Khidekel
  • Publication number: 20020076602
    Abstract: A fuel cell comprising: (a) a binary anode, (b) a cathode, and (c) a liquid electrolyte disposed between and interacting with the binary anode and the cathode, wherein the binary anode includes at least one liquid fuel and at least one solid fuel. Preferably, the electrolyte includes an alcohol such as methanol, and the solid fuel includes aluminum, magnesium and/or zinc.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 20, 2002
    Applicant: MORE ENERGY LTD.
    Inventors: Gennadi Finkelshtain, Gershon Borovsky, Boris Filanovsky, Yuri Katzman
  • Patent number: 6380126
    Abstract: An electrocatalyst based on a highly electroconducting polymer and a transition metal, in which transition metal atoms are covalently bonded to heteroatoms of the backbone monomers of the polymer. The covalently bonded transition metal atoms are nucleation sites for catalytically active transition metal particles. The complex is prepared by complexing a highly electroconducting polymer with transition metal coordination ions and then reducing the transition metal ions to neutral atoms. An electrode for a fuel cell is made by impregnating an electrically conducting sheet with the catalytic complex and drying the impregnated sheet. The scope of the present invention includes such electrodes and the fuel cells that incorporate these electrodes.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: April 30, 2002
    Assignee: Medis El LTD
    Inventors: Gennadi Finkelshtain, Yuri Katzman, Mikhail Khidekel