Patents by Inventor J. Fred Brown

J. Fred Brown 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).

  • Oxygen-delivery system with portable oxygen meter
    Patent number: 6394088
    Abstract: An oxygen-delivery system comprises a portable oxygen meter including a low-pressure oxygen inlet, a low-pressure oxygen outlet, and an exhale-inhale sensing port, an oxygen-supply source including a discharge outlet and configured to discharge low-pressure oxygen through the discharge outlet, a flexible supply tube arranged to conduct low-pressure oxygen from the oxygen-supply source into the portable oxygen meter through the low-pressure oxygen inlet, and a nasal cannula coupled to the low-pressure oxygen outlet and the exhale-inhale sensing port.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: May 28, 2002
    Inventors: Mark R. Frye, J. Fred Brown, Douglas R. Leithauser