Patents by Inventor Thomas N. Thelen

Thomas N. Thelen 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: D339719
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: September 28, 1993
    Inventor: Thomas N. Thelen