Patents by Inventor Theodore W. Coffey

Theodore W. Coffey 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).

  • Pulse indicator
    Patent number: 4038976
    Abstract: A portable electrical device having both flashing light and/or sound transmitting means activated by a transducer so that the transducer or the entire assembly may be mounted in pressure sensitive contact with a pulsing area of a living body to convert pulses to visible light flashes or sound beats adjustable in pressure sensitive pickup to reflect and monitor the blood flow through the pulse.
    Type: Grant
    Filed: March 14, 1975
    Date of Patent: August 2, 1977
    Inventors: Frank M. Hardy, Theodore W. Coffey