Patents by Inventor Wong Kwok Leung

Wong Kwok Leung 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: 8002604
    Abstract: A remote-controlled toy helicopter comprises a body; a motor in the helicopter, a battery for powering the motor, and a receiver for communicating signals between the motor and a separate remote controller. A main rotor with blades is driven by a rotor shaft and causing a first lift force developed by the main rotor when the helicopter is airborne. A system permits movement of the helicopter on the ground, and these can be wheels. The helicopter travels on a floor or ground surface when the main rotor develops a second degree of lift force. The helicopter includes a system to effect motion in a horizontal dimension thereby to direct the desired direction. The control includes an actuator for engaging with an assembly depending from the rotor, the inter-engagement of the actuator and assembly effecting a change in the angle of incidence of at least the one blade of the rotor. The system includes a rotor, preferably complemented with a stabilizer rotor.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: August 23, 2011
    Assignee: Silverlit Limited
    Inventors: Alexander Jozef Magdalena Van de Rostyne, Wong Kwok Leung
  • Patent number: D473798
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: April 29, 2003
    Assignee: Timex Group B.V.
    Inventors: Tsang Man Fu, Wong Kwok Leung
  • Patent number: D474116
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 6, 2003
    Assignee: Timex Group B.V.
    Inventors: Tsang Man Fu, Wong Kwok Leung, Greg Miller
  • Patent number: D474697
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 20, 2003
    Assignee: Timex Group B.V.
    Inventors: Tsang Man Fu, Wong Kwok Leung