Patents by Inventor Stefan Kiefersauer

Stefan Kiefersauer 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).

  • Hand-held electric power tool with monitoring of motor temperature
    Publication number: 20090103263
    Abstract: A hand-held electric power tool has a hand-held outer housing (23), an electric motor (1) with a fan (3) for generating a flow (4) of cooling air, and an electronics module (2) having an electronic motor control (2a) and a computing element (2b) for monitoring the motor temperature and including a motor temperature model (11), and a temperature sensor (5) arranged directly at the electronics module (2) and connected therewith.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 23, 2009
    Inventors: Michael Fuchs, Torsten Luettich, Roland Schaer, Roland Schwab, Stefan Kiefersauer