Patents by Inventor Roy Kretchmar

Roy Kretchmar 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).

  • Rectifier housing for use with light bulbs
    Patent number: 4544861
    Abstract: A rectifier housing for use with light bulbs to extend the life thereof. The housing includes a rigid, non-conductive base with a substantially centrally positioned rectifier element. A resilient, annular connector member is secured to one side of the housing to surround the rectifier, and includes an adhesive-coated upper face adapted to permit releasable attachment of the housing to the base of a light bulb.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: October 1, 1985
    Assignee: Certified Energy Systems, Inc.
    Inventor: Roy Kretchmar