Patents by Inventor Donald L. Camic

Donald L. Camic 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).

  • Current-level-sensitive switching system
    Patent number: 4138627
    Abstract: A solid-state switching system which produces one or more switching signals in response to a power circuit current's reaching a preset level or levels whereby remote control of associated apparatus may be effected without independent control circuits.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: February 6, 1979
    Assignee: Hughey and Phillips, Inc.
    Inventor: Donald L. Camic