Patents by Inventor Keith James Fenner

Keith James Fenner 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).

  • Molecular weight reduction of olefin copolymers using low-sulfur oils
    Patent number: 6362286
    Abstract: A method for reducing the molecular weight of olefin copolymers comprises contacting an olefin copolymer and a base oil containing less than about 0.05 wt. % sulfur in the presence of oxygen and at a temperature of at least about 60° C.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: March 26, 2002
    Assignee: Exxon Chemical Patents Inc.
    Inventors: James Macfarlane Gardiner, Keith James Fenner, Ralph Joseph Spohn, Gary W. Ver Strate