Patents by Inventor Grover W. Cone

Grover W. Cone 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).

  • Olefin polymerization
    Patent number: 6197899
    Abstract: A process is disclosed for the particle form polymerization of olefins. The process employs a titanium-containing having hydrocarbon soluble titanium components. The resulting catalyst is pretreated with an organometallic reducing agent prior to the introduction of the catalyst into the polymerization zone to give a catalyst which can be used satisfactorily in a loop reactor with lower levels of cocatalyst.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: March 6, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Kent E. Mitchell, Max P. McDaniel, M. Bruce Welch, Elizabeth A. Benham, Grover W. Cone
  • Olefin polymerization
    Patent number: 5275992
    Abstract: A process is disclosed for the particle form polymerization of olefins. The process employs a titanium-containing having hydrocarbon soluble titanium components. The resulting catalyst is pretreated with an organometallic reducing agent prior to the introduction of the catalyst into the polymerization zone to give a catalyst which can be used satisfactorily in a loop reactor with lower levels of cocatalyst.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: January 4, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Kent E. Mitchell, Max P. McDaniel, M. Bruce Welch, Elizabeth A. Benham, Grover W. Cone