Patents by Inventor Fredrick Bergsten

Fredrick Bergsten 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).

  • Alarm system for a motor vehicle
    Publication number: 20030058123
    Abstract: Alarm system for motor vehicle, incorporating an alarm control unit (10) which is powered by a main battery (30) of the motor vehicle, a siren unit (26) likewise powered by the main battery (30), and a back-up battery (28) in the siren unit (26) which is arranged to power the siren unit upon failure of the power supply from the main battery (30). To simplify and make such an alarm system safer, it is proposed inter alia that upon said failure of power supply from the main battery (30) the back-up battery (28) be arranged to automatically power also the alarm control unit (10).
    Type: Application
    Filed: June 27, 2002
    Publication date: March 27, 2003
    Inventor: Fredrick Bergsten