Patents by Inventor Carl Risberg

Carl Risberg 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).

  • Rocking toy
    Patent number: D247323
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: February 21, 1978
    Inventor: Carl Risberg