Patents by Inventor Thomas Heidtke

Thomas Heidtke 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: D328344
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: July 28, 1992
    Assignee: Lois Ziebarth
    Inventor: Thomas Heidtke