Patents by Inventor Sven Tore K. Hjelm

Sven Tore K. Hjelm 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: D278612
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: April 30, 1985
    Inventor: Sven Tore K. Hjelm