Patents by Inventor Wai Hung Fong

Wai Hung 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).

  • Calculator
    Patent number: D442619
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: May 22, 2001
    Assignee: Pollyflame International B.V.
    Inventor: Wai Hung Fong
  • Timer clock with key ring
    Patent number: D454079
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: March 5, 2002
    Assignee: Pollyflame International B.V.
    Inventor: Wai Hung Fong
  • Alarm clock
    Patent number: D457070
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: May 14, 2002
    Assignee: Pollyflame International B.V.
    Inventor: Wai Hung Fong
  • Alarm clock
    Patent number: D458850
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: June 18, 2002
    Assignee: Pollyflame International B.V.
    Inventor: Wai Hung Fong
  • Digitalogue radio alarm clock
    Patent number: D404033
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: January 12, 1999
    Assignee: Pollyflame International B.V.
    Inventor: Wai Hung Fong