Patents by Inventor Philip Rufus Samuels

Philip Rufus Samuels 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).

  • Circuits for operating electric discharge lamps
    Patent number: 4015167
    Abstract: A circuit for operating an electric discharge lamp wherein a change in the mode of operation of the circuit is effected in response to a change of phase of a voltage or current in the circuit which occurs during operation e.g. when the lamp strikes or as the lamp runs up to full current.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: March 29, 1977
    Assignee: The General Electric Company Limited
    Inventor: Philip Rufus Samuels