Patents by Inventor Anne-Katrin Sieferer

Anne-Katrin Sieferer 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).

  • Seating furniture
    Patent number: D609482
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: February 9, 2010
    Assignee: Wilkhahn Wilkening + Hahne GmbH & Co.
    Inventors: Michael Englisch, Anne-Katrin Sieferer