Patents by Inventor Stig A. M. Spangsberg

Stig A. M. Spangsberg 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).

  • Patent number: D337135
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: July 6, 1993
    Assignee: Interlego A.G.
    Inventors: Jens N. Knudsen, Stig A. M. Spangsberg
  • Patent number: D343428
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: January 18, 1994
    Assignee: Interlego A.G.
    Inventors: Stig A. M. Spangsberg, Carsten R n
  • Patent number: D360245
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: July 11, 1995
    Assignee: Interlego AG
    Inventor: Stig A. M. Spangsberg