Patents by Inventor Jack Calhoun

Jack Calhoun 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: D334954
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: April 20, 1993
    Inventor: Jack Calhoun