Patents by Inventor Robert G. Parrish

Robert G. Parrish 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).

  • Pitch carbon fibers and batts
    Patent number: 4861653
    Abstract: Mesophase pitch centrifugally spun as described over a lip yields upon stabilization and carbonization with or without graphitization carbon fibers with a lamellar microstructure.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: August 29, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Robert G. Parrish
  • Coating composition
    Patent number: 4468505
    Abstract: Certain poly[hexamethylene adipamide]-poly[poly-(oxyethylene) adipamide] copolymers which provide soil release to nylon fabrics can be applied from solution directly to a threadline without heat-setting. Aqueous alcoholic solutions of the copolymers are preferred for such application.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: August 28, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael W. Bowen, Robert G. Parrish