Patents by Inventor Shuk-Tin Hui

Shuk-Tin Hui 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).

  • Pressure gauge for toy water gun
    Patent number: 6619128
    Abstract: A pressure gauge device for a toy water gun having a pressure chamber, includes a housing, a light source mounted to the housing, a coloured transparency mounted movably to the housing, a pneumatic actuator communicating with the chamber and moving the transparency, and a display receiving light from the light source that has passed through the transparency.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: September 16, 2003
    Assignee: Imagine Company Limited
    Inventor: Shuk-Tin Hui