Patents by Inventor Theo Nagel

Theo Nagel 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).

  • Writing instrument
    Patent number: D438566
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: March 6, 2001
    Assignee: rou-bill Produktion Theo Nagel GmbH & Co. KG
    Inventor: Theo Nagel
  • Writing instrument
    Patent number: D435065
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: December 12, 2000
    Assignee: rou-bill Produktion Theo Nagel GmbH & Co. KG
    Inventor: Theo Nagel