Patents by Inventor John H. Smithwrick

John H. Smithwrick 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).

  • Microwave oven video viewing device
    Patent number: 4711979
    Abstract: A microwave viewing device and, more particularly, an arrangement facilitating the internal viewing of a microwave oven during the preparation of a food product or the like in a microwaving process. The viewing device incorporates a tubular support which is extendable through an opening formed in a side wall of a microwave oven, and which extends into close proximity to a food product being subjected to microwave processing in the oven.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: December 8, 1987
    Assignee: General Foods Corporation
    Inventors: George M. Glasser, Robert P. DeRobertis, John H. Smithwrick, William J. Kelly