Patents by Inventor Robert Grant Oliver, III

Robert Grant Oliver, III 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).

  • Publication number: 20230388720
    Abstract: An electrostatic speaker driver having specially configured stators and diaphragm for multi-directional sound projection is described. The stators and diaphragm may be frustoconical for example. Stators may have apertures to enable sound generated by vibration of the diaphragm to project in desired directions. The speaker drivers may stand alone, or alternatively, may be part of a speaker assembly including one or more speaker drivers.
    Type: Application
    Filed: May 31, 2022
    Publication date: November 30, 2023
    Inventor: Robert Grant Oliver, III
  • Patent number: 7478904
    Abstract: In combination, a pair of lens and eyeglass frame to give a viewer perception of three dimensional viewing of a two dimensional image, comprising: an opaque eyeglass frame containing a left lens and a right lens, in which the left lens is comprised of alternating tinted and clear apertures, and the right lens is composed of alternating tinted apertures complementary to the alternating clear apertures in the left lens.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: January 20, 2009
    Inventor: Robert Grant Oliver, III