Patents by Inventor John R. Hoffman, Jr.

John R. Hoffman, Jr. 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).

  • Portable kitchen
    Patent number: 3991739
    Abstract: A portable food preparation apparatus including deep stainless steel cooking pans on a support and means provided on the cooking pan bottoms to distribute heat and alleviate warping of the stainless steel pans.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: November 16, 1976
    Inventor: John R. Hoffman, Jr.