Patents by Inventor Alvin L. Hoefer

Alvin L. Hoefer 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: D485619
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: January 20, 2004
    Inventor: Alvin L. Hoefer