Patents by Inventor Donald W. Morrow, III

Donald W. Morrow, III 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 sensing method and hand held analyzer therefore
    Patent number: 5792665
    Abstract: An oxygen analyzer is provided to detect the oxygen concentration of both a control gas and the output of an oxygen concentrator using ultrasound technology. The analyzer uses a calibration mode to alter the analyzer's output when calibrating it on the control gas. The analyzer is then switched back to its normal mode to permit a therapist to check the percentage of oxygen in the gas being supplied by an oxygen concentrator.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: August 11, 1998
    Inventor: Donald W. Morrow, III