Patents by Inventor Bror-Helge Sigg

Bror-Helge Sigg 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: D258830
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: April 7, 1981
    Inventor: Bror-Helge Sigg