Patents by Inventor Tsu-Hsun Ku

Tsu-Hsun Ku 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: D306009
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: February 13, 1990
    Assignee: Servo Products Company
    Inventors: S. Stanley Mintz, Tsu-Hsun Ku, Edward T. Liljenwall
  • Patent number: D306998
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: April 3, 1990
    Assignee: Servo Products Company
    Inventors: S. Stanley Mintz, Tsu-Hsun Ku, Edward T. Liljenwall
  • Patent number: D320027
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: September 17, 1991
    Assignee: Servo Products Company
    Inventors: S. Stanley Mintz, Tsu-Hsun Ku, Edward T. Liljenwall