Patents by Inventor Leo C. Markwat

Leo C. Markwat 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).

  • Foam trimmer
    Patent number: D268475
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: April 5, 1983
    Inventor: Leo C. Markwat