Patents by Inventor Jesse R. Brinkerhoff

Jesse R. Brinkerhoff 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).

  • Wide range dimmable fluorescent lamp ballast system
    Patent number: 5172034
    Abstract: The present invention and its related methods of operation provide a wide range dimmable high frequency lamp ballast system having a resonant circuit associated with each lamp or lamp set for providing a resonant frequency which is substantially higher than the drive frequency at which the lamp or lamp set is driven, and means for automatically selecting a drive frequency to be a submultiple of the resonant frequency of the resonant circuit, the selection of a submultiple being dependent on lamp operating conditions.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: December 15, 1992
    Assignee: The Softube Corporation
    Inventor: Jesse R. Brinkerhoff
  • Telephone interconnect detection system
    Patent number: 4518825
    Abstract: A telephone interconnect detection system for selectively determining, during operation, interconnection of a plurality of trunk lines with a plurality of set lines interconnected by a pbx or the like.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: May 21, 1985
    Assignee: Telecalc, Inc.
    Inventors: Jesse R. Brinkerhoff, Richard S. Brinkerhoff