Patents by Inventor Kristian A. Bluff

Kristian A. Bluff 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).

  • Package
    Patent number: D317262
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: June 4, 1991
    Inventor: Kristian A. Bluff
  • Toy building element
    Patent number: D363512
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: October 24, 1995
    Assignee: INTERLEGO AG
    Inventor: Kristian A. Bluff
  • Toy building element
    Patent number: D364198
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: November 14, 1995
    Assignee: Interlego AG
    Inventor: Kristian A. Bluff