Patents by Inventor John C. Sparkman

John C. Sparkman 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).

  • Sailcloth
    Patent number: 4444822
    Abstract: A sailcloth comprising a laminate of a continuous sheet of synthetic resin bonded to an unwoven, warp knit scrim and, optionally, coated on the exposed side of the warp knit scrim with a synthetic resin.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: April 24, 1984
    Assignee: Howe & Bainbridge
    Inventors: Brian P. Doyle, John C. Sparkman