Patents by Inventor Chan Chee Kau

Chan Chee Kau 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).

  • Lawn dart
    Patent number: 7874947
    Abstract: In one embodiment there is provided a lawn dart having a shaft that connects to a head assembly at one end thereof. A sleeve is mounted coaxially about the shaft. The sleeve has an inner profile that matches a predetermined cross-section of the sleeve such that the sleeve is capable of axially movement and not capable of rotationally movement relative to the shaft. A plurality of fins is mounted on the sleeve.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 25, 2011
    Assignee: Fundex Games Ltd.
    Inventors: Ryan Wolfinbarger, Craig Malmloff, Chan Chee Kau