Patents by Inventor Allen R. Brontkowski

Allen R. Brontkowski 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).

  • Log gripping tool
    Patent number: D342876
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: January 4, 1994
    Inventors: Donna Brontkowski, Allen R. Brontkowski