Patents by Inventor Matthias Kruhler

Matthias Kruhler 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).

  • Inductive safety sensor for monitoring doors and gates
    Patent number: 6750658
    Abstract: Inductive safety sensor for monitoring the condition of doors and gates, particularly of elevators, having a sensor device for sensing a target which is designed such that it emits a signal only when sensing a target made of a defined material and switches from a first constant current to another constant current when the target is sensed.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: June 15, 2004
    Assignee: Bernstein AG
    Inventors: Andreas Hofmann, Matthias Krühler
  • Inductive safety sensor for monitoring doors and gates
    Publication number: 20020175812
    Abstract: Inductive safety sensor for monitoring the condition of doors and gates, particularly of elevators, having a sensor device for sensing a target which is designed such that it emits a signal only when sensing a target made of a defined material and switches from a first constant current to another constant current when the target is sensed.
    Type: Application
    Filed: March 22, 2002
    Publication date: November 28, 2002
    Applicant: Bernstein AG
    Inventors: Andreas Hofmann, Matthias Kruhler