Patents by Inventor Stig Spangsberg

Stig 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: D314992
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: February 26, 1991
    Assignee: Interlego A.G.
    Inventor: Stig Spangsberg