Patents by Inventor Christoph Rottje

Christoph Rottje 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).

  • Building block
    Patent number: D675681
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 5, 2013
    Assignee: LEGO A/S
    Inventor: Christoph Rottje
  • Construction set element
    Patent number: D676090
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 12, 2013
    Assignee: LEGO A/S
    Inventor: Christoph Rottje
  • Element for a construction set
    Patent number: D696361
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 24, 2013
    Assignee: Lego A/S
    Inventor: Christoph Rottje