Patents by Inventor Temelaki Vasilev Rogachev

Temelaki Vasilev Rogachev 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).

  • Organic expander for lead-acid storage batteries
    Patent number: 6664002
    Abstract: An organic expander composition for improving the cycle life and the cold crank ability properties of lead-acid batteries as compared to standard or oxylignin organic expanders. The organic expander composition is obtained by a blend of oxylignin and kraft lignin.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: December 16, 2003
    Assignee: LignoTech USA, Inc.
    Inventors: Timothy J. McNally, Michael E. Sanford, Bernt O. Myrvold, Detchko Pavlov Detchkov, Temelaki Vasilev Rogachev, Geno Petkov Papazov, Maria Borisova Matrakova
  • Valve-regulated lead-acid cells and batteries and separators used in such cells and batteries
    Patent number: 6509118
    Abstract: A valve-regulated lead-acid cell utilizes an absorptive glass mat separator having a glass fiber surface which is modified by treatment with at least one particular polymer, as by treatment with a polymer emulsion to coat at least part of the glass fiber surface and then sintering to dry the coating, the polymers including polyolefins, polytetrafluoroethylene, polyvinylchlorides, polyacrylonitriles, polyesters, amphiphilic block and graft copolymers, hydrophilic and amphiphilic nitrogen-containing polymers and polyorgano-silica compounds such as polysilanes and polysiloxanes.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 21, 2003
    Inventors: Detchko Pavlov, Stefan Ivanov Ruevski, Veselin Bozhidarov Naidenov, Vera Vladimirova Mircheva, Galia Angelova Petkova, Mitko Kolev Dimitrov, Temelaki Vasilev Rogachev, Mariana Hristova Cherneva-Vasileva
  • Organic expander for lead-acid storage batteries
    Publication number: 20020132165
    Abstract: An organic expander composition for improving the cycle life and the cold crank ability properties of lead-acid batteries as compared to standard or oxylignin organic expanders. The organic expander composition is obtained by a blend of oxylignin and kraft lignin.
    Type: Application
    Filed: December 11, 2001
    Publication date: September 19, 2002
    Inventors: Timothy J. McNally, Michael E. Sanford, Bernt O. Myrvold, Detchko Pavlov Detchkov, Temelaki Vasilev Rogachev, Geno Petkov Papazov, Maria Borisova Matrakova
  • Organic expander for lead-acid storage batteries
    Patent number: 6346347
    Abstract: An organic expander composition for improving the cycle life and the cold crank ability properties of lead-acid batteries as compared to standard or oxylignin organic expanders. The organic expander composition is obtained by a blend of oxylignin and kraft lignin.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: February 12, 2002
    Assignee: Lignotech, U.S.A., Inc.
    Inventors: Timothy J. McNally, Michael E. Sanford, Bernt O. Myrvold, Detchko Pavlov Detchkov, Temelaki Vasilev Rogachev, Geno Petkov Papazov, Maria Borisova Matrakova