Patents by Inventor John P. Gills

John P. Gills 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).

  • Fluidic heart-sound monitor and esophageal stethoscope
    Patent number: 5076284
    Abstract: A heart-sound monitor and esophageal stethoscope which makes use of fluidic aminar proportional amplifiers (LPAs). These LPA's are used to sense and amplify incoming acoustic pressure signals, such as heart signals. Moreover, the fluidic monitor is able to monitor a fetus heartbeat while eliminating the acoustic interference present from the mother's heartbeat. In this case, the LPA acts not only as an amplifier, but as an acoustic filter as well.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: December 31, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: James W. Joyce, Nassy Srour, Michael V. Scanlon, Stephen M. Tenney, George Mon, John P. Gills