Patents by Inventor John J. Ridland

John J. Ridland 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).

  • Resin cure system for hydrogenated nitrile polymer
    Patent number: 4774288
    Abstract: The invention relates to a vulcanizable composition containing a partially hydrogenated nitrile polymer and a resin vulcanization system.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: September 27, 1988
    Assignee: Polysar Limited
    Inventor: John J. Ridland