Patents by Inventor Ricahrd S. Knape

Ricahrd S. Knape 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).

  • Patent number: D321621
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: November 19, 1991
    Assignee: Knape & Vogt Manufacturing Company
    Inventors: William E. Stumpf, Casey L. Carlson, Ricahrd S. Knape