Patents by Inventor Larry G. Fry

Larry G. Fry 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).

  • Drag reducers for flowing hydrocarbons
    Patent number: 5376697
    Abstract: The present invention provides a process for precipitating a polyolefin from solution. The present invention also provides a polyolefin paste having drag reducing characteristics when dissolved in a flowing hydrocarbon stream and a method for making the drag reducing paste. Finally, the present invention provides a slurried drag reducer prepared from the paste for use in flowing hydrocarbon streams.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: December 27, 1994
    Assignee: Conoco Inc.
    Inventors: Ray L. Johnston, Larry G. Fry