Patents by Inventor Philip Yee Lit Lau

Philip Yee Lit Lau 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).

  • Playground for small animal such as hamster
    Patent number: D430708
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: September 5, 2000
    Assignee: Wah Lok Pet Supplies Manufactory Limited
    Inventor: Philip Yee Lit Lau