Patents by Inventor Leonard P. Perez

Leonard P. Perez 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).

  • Electrocatalyst compositions and processes for making and using same
    Patent number: 8252485
    Abstract: In a method of producing a particulate electrocatalyst composition, a precursor medium comprising at least a first metal precursor, a liquid vehicle, and a substrate precursor to substrate particles is atomized into precursor droplets. The droplets are then heated to a reaction temperature of not greater than 700° C. to form composite particles comprising said first metal at least partly in an oxide form dispersed on said substrate particles. The composite particles are then collected and are heated at a first treatment temperature no greater than 250° C. in the presence of a reducing atmosphere to at least partly convert said oxide form to the metal.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 28, 2012
    Assignee: Cabot Corporation
    Inventors: Yipeng Sun, Paolina Atanassova, James Brewster, Leonard P. Perez, Hanwei Lei, Berislav Blizanac
  • ELECTROCATALYST COMPOSITIONS AND PROCESSES FOR MAKING AND USING SAME
    Publication number: 20080226958
    Abstract: In a method of producing a particulate electrocatalyst composition, a precursor medium comprising at least a first metal precursor, a liquid vehicle, and a substrate precursor to substrate particles is atomized into precursor droplets. The droplets are then heated to a reaction temperature of not greater than 700° C. to form composite particles comprising said first metal at least partly in an oxide form dispersed on said substrate particles. The composite particles are then collected and are heated at a first treatment temperature no greater than 250° C. in the presence of a reducing atmosphere to at least partly convert said oxide form to the metal.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 18, 2008
    Applicant: CABOT CORPORATION
    Inventors: Yipeng SUN, Paolina ATANASSOVA, James BREWSTER, Leonard P. PEREZ, Hanwei LEI, Berislav BLIZANAC