Patents by Inventor Joseph H. Holles

Joseph H. Holles 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).

  • Polyoxometallate catalysts and catalytic processes
    Patent number: 7019165
    Abstract: An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. C3 and C4 hydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: March 28, 2006
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Christopher J. Dillon, Joseph H. Holles, Jay A. Labinger, Axel Brait
  • Polyoxometallate catalysts and catalytic processes
    Patent number: 6914029
    Abstract: An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. C3 and C4 hydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: July 5, 2005
    Assignee: California Institute of Technology
    Inventors: Mark E. Davis, Christopher J. Dillon, Joseph H. Holles, Jay A. Labinger, Axel Brait
  • Polyoxometallate catalysts and catalytic processes
    Publication number: 20030144550
    Abstract: An active and selective hydrocarbon partial oxidation catalyst comprises an activated partially-reduced polyoxometallate, preferably niobium polyoxomolybdate, that is prepared from a suitable polyoxoanion, which has been exchanged with a suitable cation and activated by heating to an activation effective temperature in the presence of a suitable reducing agent such as pyridinium. C3 and C4 hydrocarbons may be partially oxidized selectively to acrylic acid and maleic acid.
    Type: Application
    Filed: November 1, 2002
    Publication date: July 31, 2003
    Inventors: Mark E. Davis, Christopher J. Dillon, Joseph H. Holles, Jay A. Labinger, Axel Brait