Patents by Inventor John L. Buster

John L. Buster 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 production
    Patent number: 5919996
    Abstract: A process is provided to modify an olefin production catalyst system which comprises contacting an olefin production catalyst system with ethylene prior to use. A process also is provided to trimerize and/or oligomerize olefins with the novel, modified olefin catalyst production system. The modified olefin production catalyst system produces less solids, such as, for example, polymer.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: July 6, 1999
    Assignee: Phillips Petroleum Company
    Inventors: Jeffrey W. Freeman, John L. Buster, Ronald D. Knudsen
  • Olefin production
    Patent number: 5856257
    Abstract: A process is provided to modify an olefin production catalyst system which comprises contacting an olefin production catalyst system with ethylene prior to use. A process also is provided to trimerize and/or oligomerize olefins with the novel, modified olefin catalyst production system. The modified olefin production catalyst system produces less solids, such as, for example, polymer.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: January 5, 1999
    Assignee: Phillips Petroleum Company
    Inventors: Jeffrey W. Freeman, John L. Buster, Ronald D. Knudsen
  • Single stitch suture needle and method
    Patent number: 5100431
    Abstract: A suture comprising a needle including a substantially straight section terminating at one end in a point and a curved section joined to the other end of the straight section. The straight section and the curved section lie in substantially the same plane. The curved section terminates in a proximal end portion, and a suture is coupled to the proximal end portion of the curved section. This needle can be used in a method for closing an incision in the sclera or cornea with only a single stitch.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: March 31, 1992
    Assignee: Allergan, Inc.
    Inventors: John L. Buster, Paul H. Ernest
  • Skid resistance of asphalt surface roads
    Patent number: 3994610
    Abstract: Asphalt surface roads are subjected to an oxidizing treatment, e.g., flame treatment, to improve resistance thereof to skidding on the surface thereof.
    Type: Grant
    Filed: January 17, 1974
    Date of Patent: November 30, 1976
    Assignee: Phillips Petroleum Company
    Inventors: Richard J. Bennett, Ollie G. Buck, John L. Buster