Patents by Inventor Charles M. Rapach

Charles M. Rapach 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).

  • Adaptation of heart pacing to physical activity
    Patent number: 4907593
    Abstract: A rate-changing implantable heart-stimulating device is disclosed, one that avoids use of moving parts and making unwanted rate changes. The device senses and responds to skeletal myopotential signals derived from the body of the wearer, preferably considering both amplitude and frequency of myopotential voltage signals which exceed a predetermined threshold value. The device preferably has two-way radio communication with an external programmer means.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: March 13, 1990
    Assignee: Biocontrol Technology, Inc.
    Inventors: Charles M. Rapach, David L. Purdy, Orlando Maytin