Patents by Inventor Richard A. Devereaux

Richard A. Devereaux 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).

  • Security system
    Patent number: 4132987
    Abstract: A security system of the type including one or more electrically-continuous closed loops for detecting the presence of an intruder wherein a breach in security indicative of the intrusion is sensed by a change in potential at a point along the line with which the closed loop is electrically connected.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: January 2, 1979
    Inventor: Richard A. Devereaux