Patents by Inventor Brian H. Twohig

Brian H. Twohig 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).

  • Automotive continuous protection anti-theft system
    Patent number: 5459448
    Abstract: An automotive security device of the type consisting of: (a) a portable unit and (b) a central unit. The portable unit consisting of a transmitter circuit and a pulse duration circuit being capable of transmitting specified signal pulses at periodic intervals over a limited distance. The central unit, which is mounted in the vehicle, consisting of a receiver circuit and an interface circuit being capable of receiving these signals and activating the vehicle electrical system upon receiving said signal and deactivating the vehicle electrical system upon the absence of said signal.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: October 17, 1995
    Inventors: Christopher J. Dortenzio, Brian H. Twohig