Patents by Inventor Shu Kwan Wong

Shu Kwan 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).

  • Publication number: 20110176393
    Abstract: This present invention discloses a quartz timepiece which can be operated without battery, which comprises an environmental-friendly electricity supply component and a quartz clock movement connected to each other, and a super capacitor serially connected to the environmental-friendly electricity supply component. The present environmental-friendly quartz timepiece operates with the super capacitor and other natural power supply unit (such as light absorbing plate and hydro-power supply device) to supply power to the timing component of the timepiece. The charge and discharge cycles of the super capacitor can reach up to a million times and are sufficient to maintain the operational life of the timepiece, and so users do not need to replace the standard battery. As a result, the timepiece is relatively simple and reasonable in structure, energy saving and environmental-friendly. The environmental-friendly quartz timepiece further provides an electricity monitoring unit in the power supply circuit.
    Type: Application
    Filed: August 6, 2009
    Publication date: July 21, 2011
    Applicant: Ocean Works Limited
    Inventor: Shu Kwan Wong
  • Patent number: 7477229
    Abstract: This invention relates to a clock with intelligent backlight device comprising a casing, a power supply, timing components, a printed circuit board, time setting buttons and so forth. The power supply is in the form of dry batteries placed inside the battery box of the casing. Inside the casing there are a backlight device and a backlight source. The backlight device is disposed at the back of the timing components, and the backlight source is disposed at the back of the backlight device. The printed circuit board is installed with integrated circuits, the first output thereof drives and controls the timing components, the input thereof connects to the time setting buttons, while the second output thereof drives and controls the backlight source through a photosensitive resistor and an electronic switch in serial connection. The present invention is powered by dry batteries and is operated by low voltage and current.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: January 13, 2009
    Assignee: Centre Way Company Limited
    Inventor: Shu Kwan Wong
  • Patent number: D385200
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: October 21, 1997
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D386419
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: November 18, 1997
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D387286
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 9, 1997
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D387287
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 9, 1997
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D387288
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: December 9, 1997
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D390474
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: February 10, 1998
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong
  • Patent number: D397299
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: August 25, 1998
    Assignee: Herald Electronics Limited
    Inventor: Shu Kwan Wong