Patents by Inventor Tso C. Fong

Tso C. Fong 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).

  • Wristwatch
    Patent number: D312580
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: December 4, 1990
    Assignee: Pearl Industries Limited
    Inventor: Tso C. Fong
  • Wristwatch
    Patent number: D316973
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: May 21, 1991
    Assignee: Pearl Industries Limited
    Inventor: Tso C. Fong
  • Wristwatch
    Patent number: D316974
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: May 21, 1991
    Assignee: Pearl Industries Limited
    Inventor: Tso C. Fong
  • Watch case
    Patent number: D321142
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: October 29, 1991
    Assignee: Pearl Industries Limited
    Inventor: Tso C. Fong
  • Wristwatch
    Patent number: D325877
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: May 5, 1992
    Assignee: Pearl Industries Limited
    Inventor: Tso C. Fong