Patents by Inventor Christopher Mathewson

Christopher Mathewson 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).

  • Liquid crystal projector
    Patent number: 5313234
    Abstract: A liquid crystal display panel projector including a housing having a thermally isolated hot compartment which has an illumination source and a cold compartment which retains liquid crystal display panel. The housing includes individual cooling fluid paths for the hot and cold compartments. The display panel is disposed in the cold compartment where it is isolated from the thermal energy of the illumination source to provide a substantially stable thermal environment.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: May 17, 1994
    Assignee: Sayett Group, Inc.
    Inventors: Orvan Edmonson, Christopher Mathewson