Patents by Inventor Yiu Kuen Kwan

Yiu Kuen Kwan 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).

  • Patent number: 6371830
    Abstract: A toy vehicle that is battery powered and driven by an electric motor mounted on the vehicle. The toy vehicle is designed for high and low speed operation in both a two-wheel drive mode and a four-wheel drive mode, as well as having a free wheel mode where the wheels are not in driving engagement with the electric motor. Thus the toy vehicle has at least five operating modes: 1) a higher speed two-wheel drive mode; 2) a lower speed two-wheel drive mode; 3) a higher speed four-wheel drive mode; 4) a lower speed four-wheel drive mode; and 5) a free wheel mode. Providing the toy vehicle with all of these operating modes makes the vehicle more interesting to children. In addition, the front end of the toy vehicle is designed to light up thereby increasing the visual appeal of the vehicle, especially for children. Further, the toy vehicle employs a unique electrical connection between the battery and the electric motor that does not require soldering or wiring, thereby simplifying assembly of the vehicle.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: April 16, 2002
    Assignee: Acekey Limited
    Inventors: Wai Kwok Wu, Yiu Kuen Kwan