Patents by Inventor Alt G. Helmut

Alt G. Helmut 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).

  • Dimerization catalyst systems, their preparation, and use
    Patent number: 7696123
    Abstract: A method for preparing a nickel-containing composition, and a composition prepared by such method, are disclosed including the steps of: a) mixing a phosphorous compound with a nickel complex having nickel bonded to a heteroatom to thereby form a nickel-phosphorous-containing mixture; and b) contacting the nickel-phosphorous-containing mixture with a supported partially hydrolyzed alkylaluminum compound, thereby forming such nickel-containing composition. Use of such nickel-containing composition in the dimerization of propene is also disclosed.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: April 13, 2010
    Assignee: ConocoPhillips Company
    Inventors: Katharina J. Schneider, Alt G. Helmut, George D. Parks, Roland Schmidt
  • Dimerization catalyst systems, their preparation, and use
    Publication number: 20080085829
    Abstract: A method for preparing a nickel-containing composition, and a composition prepared by such method, are disclosed including the steps of: a) mixing a phosphorous compound with a nickel complex having nickel bonded to a heteroatom to thereby form a nickel-phosphorous-containing mixture; and b) contacting the nickel-phosphorous-containing mixture with a supported partially hydrolyzed alkylaluminum compound, thereby forming such nickel-containing composition. Use of such nickel-containing composition in the dimerization of propene is also disclosed.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 10, 2008
    Inventors: Katharina J. Schneider, Alt G. Helmut, George D. Parks, Roland Schmidt