Patents by Inventor Ralph B. Johnson

Ralph B. Johnson 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).

  • High speed infrared imaging system
    Patent number: 4419692
    Abstract: The present invention is a method of referencing and operating an infrared imaging system that may be used with virtually any system. A preferred embodiment of the invention is disclosed using a mechanical scanning mirror that minimizes spatial scan distortion.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: December 6, 1983
    Assignee: Texas Medical Instruments, Inc.
    Inventors: James E. Modisette, Ralph B. Johnson