Patents by Inventor Sigrid Haugen

Sigrid Haugen 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).

  • Baking apparatus
    Patent number: D509099
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: September 6, 2005
    Assignee: Porsgrunds Porselaensfabrik AS
    Inventor: Sigrid Haugen