Patents by Inventor Dick Nagaki

Dick Nagaki 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).

  • Catalyst modifiers and their use in the polymerization of olefin(s)
    Publication number: 20030207753
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Application
    Filed: August 17, 2001
    Publication date: November 6, 2003
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Catalyst modifiers and their use in the polymerization of olefins(s)
    Patent number: 6346584
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: February 12, 2002
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
  • Catalyst modifiers and their use in the polymerization of olefin(s)
    Publication number: 20020013219
    Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.
    Type: Application
    Filed: August 17, 2001
    Publication date: January 31, 2002
    Inventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson