Patents by Inventor Richard J. Prins

Richard J. Prins 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).

  • Controller for use with electric heating pads
    Patent number: D341569
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: November 23, 1993
    Assignee: Sunbeam Corporation
    Inventors: Richard J. Prins, Charles W. Murin, Clifford R. Stine, Sherry B. Hirsch