Patents by Inventor Stephen D. Pearce

Stephen D. Pearce 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).

  • Transducer for detecting apnea
    Patent number: 4971065
    Abstract: A transducer element particularly adapted for use in an apnea detection system is formed of resilient conductive material having an electrical impedance which varies in response to breathing movement of an infant. A control detects the varying impedance and generates an alarm signal whenever variations caused by breathing movements fall below a predetermined level.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: November 20, 1990
    Inventor: Stephen D. Pearce