Patents by Inventor Robert M. Infield

Robert M. Infield 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).

  • Polymerization processes
    Patent number: 5583189
    Abstract: In accordance with the present invention, there is provided catalyst systems and processes for preparing such catalyst systems comprising reacting a metallocene compound, a solid organoaluminoxy product, and an organometal compound. Further there is provided processes for the polymerization of olefins using the catalyst systems.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: December 10, 1996
    Assignee: Phillips Petroleum Company
    Inventors: Rolf L. Geerts, Syriac J. Palackal, Ted M. Pettijohn, Robert M. Infield
  • Metallocene catalyst systems, preparation, and use
    Patent number: 5496781
    Abstract: In accordance with the present invention, there is provided catalyst systems and processes for preparing such catalyst systems comprising reacting a metallocene compound, a solid organoaluminoxy product, and an organometal compound. Further there is provided processes for the polymerization of olefins using the catalyst systems.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: March 5, 1996
    Assignee: Phillips Petroleum Company
    Inventors: Rolf L. Geerts, Syriac J. Palackal, Ted M. Pettijohn, Robert M. Infield