Patents by Inventor Yeung Chung Wong

Yeung Chung Wong 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: 6997580
    Abstract: A multidirectional light emitting diode unit includes a light emitting diode chip configured to emit light from at least one side of the chip when powered. An at least translucent casing extends from at least the one side of the light emitting diode chip. A distal end of the casing has at least two protrusions. Each protrusion has a substantially flat distal end surface facing outwardly away from the light emitting diode chip and inwardly toward a centerline of a cylindrical sidewall to form a recess between the protrusions within the distal end of the casing. Light from the light emitting diode chip is internally reflected by the sidewall and directed outwardly from the casing through the flat surfaces along output directions normal thereto.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: February 14, 2006
    Assignee: Mattel, Inc.
    Inventor: Yeung Chung Wong
  • Patent number: 6632122
    Abstract: A toy vehicle is configured for itinerant maneuvers and is programmed by manually drawing a path on an exposed surface of a mechanical touch screen assembly on the vehicle. A microprocessor, coupled with the touch screen assembly, reads the manually drawn path and controls movement of the vehicle to follow the manually drawn path. In one embodiment, the drawn path is erased to enter a new path by pivoting the first sheet of the assembly away from the second sheet and, in another embodiment, by separating the first and second sheets by sliding a horizontal plate between the sheets. A sensor on the vehicle detects the presence of a stylus in a holder. The microprocessor responds to the presence to initiate the itinerant movement and/or activate a visual indicator or an audio generator or both in the toy vehicle.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: October 14, 2003
    Assignee: Mattel, Inc.
    Inventors: Daniel B. Klitsner, Brian P. Clemens, Philip H. Neal, Stephen N. Weiss, Yeung Chung Wong, Jesse Dorogusker, Charles S. McCall
  • Publication number: 20020111118
    Abstract: A toy vehicle is configured for itinerant maneuvers and is programmed by manually drawing a path on an exposed surface of a mechanical touch screen assembly on the vehicle. A microprocessor, coupled with the touch screen assembly, reads the manually drawn path and controls movement of the vehicle to follow the manually drawn path. In one embodiment, the drawn path is erased to enter a new path by pivoting the first sheet of the assembly away from the second sheet and, in another embodiment, by separating the first and second sheets by sliding a horizontal plate between the sheets. A sensor on the vehicle detects the presence of a stylus in a holder. The microprocessor responds to the presence to initiate the itinerant movement and/or activate a visual indicator or an audio generator or both in the toy vehicle.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 15, 2002
    Inventors: Daniel B. Klitsner, Brian P. Clemens, Philip H. Neal, Stephen N. Weiss, Yeung Chung Wong, Jesse Dorogusker, Charles S. McCall