Patents by Inventor Lap Yan Chau

Lap Yan Chau 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).

  • Multi-function tool
    Patent number: D426446
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: June 13, 2000
    Assignee: Alltrade Inc.
    Inventor: Lap Yan Chau
  • Multifunction tool
    Patent number: D426447
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: June 13, 2000
    Assignee: Alltrade Inc.
    Inventor: Lap Yan Chau