Patents by Inventor Delford D. Bilyeu

Delford D. Bilyeu 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).

  • Pneumatic fire pump pressure controller
    Patent number: 4492525
    Abstract: An electro-pneumatic variable control for fire pumper engine and pump discharge.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: January 8, 1985
    Assignee: Grumman Emergency Products, Inc.
    Inventor: Delford D. Bilyeu