Patents by Inventor Ralf Menniger

Ralf Menniger 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).

  • Circuit for driving an appliance for treating laundry
    Patent number: 7420345
    Abstract: A circuit for driving an appliance for treating laundry, includes a motor circuit having an AC motor, and a door-locking circuit. The motor circuit and the door-locking circuit may be driven by a single common electronic switching element.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: September 2, 2008
    Assignee: Diehl AKO Stiftung & Co. KG
    Inventor: Ralf Menniger
  • Circuit for driving an appliance for treating laundry
    Publication number: 20070085503
    Abstract: A circuit for driving an appliance for treating laundry, includes a motor circuit having an AC motor, and a door-locking circuit. The motor circuit and the door-locking circuit may be driven by a single common electronic switching element.
    Type: Application
    Filed: September 21, 2006
    Publication date: April 19, 2007
    Inventor: Ralf Menniger