Patents by Inventor Sai Ying Tam

Sai Ying Tam 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).

  • Info pen
    Patent number: D558826
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: January 1, 2008
    Assignee: Samson Innovation Corporation Ltd.
    Inventor: Sai Ying Tam
  • Combined pen and advertisement
    Patent number: D401967
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: December 1, 1998
    Assignee: Samson Innovation Corporation Ltd.
    Inventor: Sai Ying Tam
  • Magic puzzle
    Patent number: D407447
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: March 30, 1999
    Assignee: BHS International Inc.
    Inventor: Sai Ying Tam
  • Puzzle cube
    Patent number: D412541
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: August 3, 1999
    Assignee: Samson Innovation Corporation Ltd.
    Inventor: Sai Ying Tam
  • Tape measure
    Patent number: D423381
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: April 25, 2000
    Assignee: BHS International, Inc.
    Inventor: Sai Ying Tam
  • Tumor meter
    Patent number: D423960
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: May 2, 2000
    Assignee: BHS International, Inc.
    Inventor: Sai Ying Tam
  • Instrument for measuring electrocardiogram
    Patent number: D425622
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: May 23, 2000
    Assignee: BHS International, Inc.
    Inventor: Sai Ying Tam
  • Instrument for measuring electrocardiogram
    Patent number: D428492
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: July 18, 2000
    Assignee: BHS International, Inc.
    Inventor: Sai Ying Tam