Patents by Inventor Warren M. Black

Warren M. Black 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).

  • Toe-rail
    Patent number: D257337
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: October 14, 1980
    Assignee: Merriman Holbrook, Inc.
    Inventor: Warren M. Black