Patents by Inventor Gary L. Poffenbarger

Gary L. Poffenbarger 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).

  • Method of reducing coke yield
    Patent number: 4455219
    Abstract: The coke yield from a delayed coker is minimized by substituting a lower boiling range material for a part of the conventional recycle.
    Type: Grant
    Filed: February 9, 1983
    Date of Patent: June 19, 1984
    Assignee: Conoco Inc.
    Inventors: Harry R. Janssen, Gary L. Poffenbarger