Patents by Inventor Philip C. Catagnus

Philip C. Catagnus 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).

  • Passivation of mercury cadmium telluride semiconductor surfaces by anodic oxidation
    Patent number: 3977018
    Abstract: A substrate of photoconductive semiconductor material is anodized by electrolysis in an electrolyte such as, for example, 0.1M KOH 90% ethylene glycol - 10% deionized water to form anodic oxide surfaces to stabilize the surface state density to prevent recombination hole-electron pairs during sweepout thereby producing a long term, high temperature stable infrared detector.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: August 24, 1976
    Assignee: Texas Instruments Incorporated
    Inventors: Philip C. Catagnus, Charles T. Baker