Patents by Inventor Au Yeung Siu Fai

Au Yeung Siu Fai 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: D399536
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: October 13, 1998
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai
  • Patent number: D403362
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: December 29, 1998
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai
  • Patent number: D408866
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: April 27, 1999
    Assignee: Watercore, Ltd.
    Inventor: Au Yeung Siu Fai
  • Patent number: D410257
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: May 25, 1999
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai
  • Patent number: D411586
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: June 29, 1999
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai
  • Patent number: D414523
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: September 28, 1999
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai
  • Patent number: D420398
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: February 8, 2000
    Assignee: Watercore Limited
    Inventor: Au Yeung Siu Fai