Patents by Inventor Karl E. Kanthak

Karl E. Kanthak 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).

  • Vehicle
    Patent number: D393609
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: April 21, 1998
    Inventors: Karl E. Kanthak, James C. Duncan