Patents by Inventor Robert W. Kammerer

Robert W. Kammerer 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: D369684
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: May 14, 1996
    Inventors: John J. Engel, Robert W. Kammerer