Patents by Inventor Wai Lung Chan

Wai Lung Chan 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: 20230419868
    Abstract: A light-emitting label (100, 210, 300, 400, 500) and a light-emitting label system (200) comprising same. The light-emitting label (100, 210, 300, 400, 500) comprises: a back plate (110, 310, 410, 510), at least one battery (120, 320, 420, 520), a light guide plate (140, 340, 440, 540), a flexible printed circuit (150, 350, 450, 550), and a pattern layer (160, 360, 460, 560). The flexible printed circuit (150, 350, 450, 550) comprises a substrate surface (152) and an electrically-conductive surface (154) comprising a plurality of light-emitting diodes (1542) arranged thereon. The light guide plate (140, 340, 440, 540) comprises a front light guide surface (142) and a rear light guide surface (144) opposite thereto. The pattern layer (160, 360, 460, 560) fixes the flexible printed circuit (150, 350, 450, 550) onto the front light guide surface (142), and the back plate (110, 310, 410, 510) seals the at least one battery (120, 320, 420, 520) onto the rear light guide surface (144).
    Type: Application
    Filed: November 17, 2021
    Publication date: December 28, 2023
    Inventors: Kwok Lung HO, Wai Lung CHAN, Hon Kei LEE
  • Patent number: D501798
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: February 15, 2005
    Assignee: Novo International Company Limited
    Inventor: Wai Lung Chan