Patents by Inventor Pak Keung WU

Pak Keung WU 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).

  • SIMPLE BARCODE SYSTEM AND BARCODE
    Publication number: 20180253579
    Abstract: A simple color barcode reader for reading a target color includes a PCB and a means for determining the color of the target color. The PCB has at least one R/G/B LED and photosensor installed thereon for shining light on the target color in an environment to determine the color of the target color. The means for determining the color of the target color is based upon the output from the R/G/B LED and photosensor. The target color is one of 9 natural colors as defined on the hue scale.
    Type: Application
    Filed: March 4, 2017
    Publication date: September 6, 2018
    Inventor: Pak Keung WU
  • Bar code for a pouch
    Patent number: D836001
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: December 18, 2018
    Assignee: Discovery Inc.
    Inventor: Pak Keung Wu