Patents by Inventor Clifford G. Schwenker

Clifford G. Schwenker 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: D346069
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: April 19, 1994
    Inventor: Clifford G. Schwenker