Patents by Inventor Welby K. O. Woo

Welby K. O. Woo 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).

  • Electronic game housing
    Patent number: D331427
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: December 1, 1992
    Assignee: Playtech, Inc.
    Inventor: Welby K. O. Woo
  • Electronic game housing
    Patent number: D331606
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: December 8, 1992
    Assignee: Playtech, Inc.
    Inventor: Welby K. O. Woo