Patents by Inventor Andrew C. S. Tse

Andrew C. S. Tse 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).

  • Clock
    Patent number: D322942
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: January 7, 1992
    Assignee: HBL Ltd.
    Inventor: Andrew C. S. Tse
  • Wristwatch
    Patent number: D323785
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: February 11, 1992
    Assignee: HBL Ltd.
    Inventor: Andrew C. S. Tse
  • Wristwatch
    Patent number: D324343
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: March 3, 1992
    Assignee: HBL Ltd.
    Inventor: Andrew C. S. Tse
  • Watchband
    Patent number: D328878
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: August 25, 1992
    Assignee: HBL Ltd.
    Inventor: Andrew C. S. Tse
  • Watchband
    Patent number: D332760
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: January 26, 1993
    Assignee: HBL Ltd.
    Inventor: Andrew C. S. Tse