Patents by Inventor Theodore R. Johnson

Theodore R. 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).

  • Method and apparatus for detecting blood gas
    Patent number: 4535778
    Abstract: A blood gas detector for human use has a support fitting into the mouth between the sides of the upper and lower jaws and the inside of the cheek and carries electric conductors for connection to an external indicator affording response to blood gas present at the inside of the cheek. The detector may also have an electric heater on the support fitting.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: August 20, 1985
    Assignee: Ancet Corporation
    Inventors: Sotiris Kitrilakis, Theodore R. Johnson