Patents by Inventor Axel Stürken

Axel Stürken 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).

  • Pen loop
    Patent number: D620981
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: August 3, 2010
    Assignee: Leuchtturm Albenverlag GmbH & Co. KG
    Inventor: Axel Stürken