Patents by Inventor Hans Joachim Graper

Hans Joachim Graper 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).

  • Grease gun
    Patent number: D407613
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: April 6, 1999
    Assignee: Umeta Hermann Ulrichskotter Metallwarenfabrik GmbH & Co.
    Inventor: Hans Joachim Graper