Patents by Inventor Robert B. Weinhold

Robert B. Weinhold 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).

  • Potential adjusting sensor supervision circuit
    Patent number: 5517175
    Abstract: A warning or alarm sensor supervision circuit employs varying voltage levels which may vary at random intervals and to random levels.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: May 14, 1996
    Assignee: Stellar Security Products, Inc.
    Inventors: Glenn A. Brown, Robert B. Weinhold