Patents by Inventor Paul R. Hollrah

Paul R. Hollrah 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).

  • Holder for jigsaw puzzles
    Patent number: D335152
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: April 27, 1993
    Inventor: Paul R. Hollrah