Patents by Inventor George R. Hefner

George R. Hefner 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).

  • Dental apparatus
    Patent number: 4260376
    Abstract: This invention relates to dental illumination apparatus in general, and more specifically to a combined focused dental light and audio-visual instrument which will distract, entertain and educate a patient upon whom the light is focused, to reduce the anxiety and psycho-somatic pain experienced by a patient undergoing routine dental procedures.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: April 7, 1981
    Inventors: James G. Litel, George R. Hefner