Patents by Inventor John C. Downing

John C. Downing 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).

  • Light stimulator
    Patent number: 4940323
    Abstract: A light stimulator device which tests and therapeutically stimulates the neurovisual system by visible light. It utilizes a balanced spectrum, magnetic, plasmatic light source (32) with different color filters (20) and different apertures (18) interposed between the light source and the subject's eyes. The flash rate of the light source (32) can be continuously varied (24) to provide for diagnostic CFF testing.
    Type: Grant
    Filed: October 4, 1988
    Date of Patent: July 10, 1990
    Inventor: John C. Downing