Patents by Inventor Robert Lillard

Robert Lillard 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).

  • Portable power source for dental handpiece illumination
    Patent number: 5324197
    Abstract: A portable power supply powers the light in a dental handpiece. The portable power supply includes a rechargeable battery for the electric power, and has connectors for connection to the handpiece and its fluid supply and exhaust. The connectors communicate with a manifold which has a port for connection of a pressure operated switch. The pressure operated switch operates the light so the light is illuminated only when the handpiece is operating.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: June 28, 1994
    Inventors: Nat R. Shain, Stan Lillard, Robert Lillard