Patents by Inventor Chi Wai Li

Chi Wai Li 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).

  • Method of coating interior surfaces with riblets
    Patent number: 10322436
    Abstract: A method of applying a riblet structure coating on the internal surface of a pipe includes coating the internal surface of a pipe with a resin layer and applying a cavity mold having a reverse riblet pattern structure to the coated internal surface of the pipe. A flexible air bag is inserted into the interior of the pipe and charged with air to hold the mold against the coated internal surface of the pipe. The air bag may be charged with air for a sufficient amount of time to allow the coating to cure in the riblet shape of the mold. Afterwards, the air bag and the mold are removed from the pipe to yield a pipe coated with an internal riblet structure.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 18, 2019
    Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Su Ping Bao, Lei Gao, Man Lung Sham, Chun Ping Wu, Chi Wai Li
  • METHOD OF COATING INTERIOR SURFACES WITH RIBLETS
    Publication number: 20180099312
    Abstract: A method of applying a riblet structure coating on the internal surface of a pipe includes coating the internal surface of a pipe with a resin layer and applying a cavity mold having a reverse riblet pattern structure to the coated internal surface of the pipe. A flexible air bag is inserted into the interior of the pipe and charged with air to hold the mold against the coated internal surface of the pipe. The air bag may be charged with air for a sufficient amount of time to allow the coating to cure in the riblet shape of the mold. Afterwards, the air bag and the mold are removed from the pipe to yield a pipe coated with an internal riblet structure.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 12, 2018
    Inventors: Su Ping BAO, Lei GAO, Man Lung SHAM, Chun Ping WU, Chi Wai LI
  • PORTABLE ELECTRONIC DEVICE
    Publication number: 20170244825
    Abstract: The present subject matter discloses a portable electronic device having multiple functional units for providing distinct functionalities to the portable electronic device. The portable electronic device also has a connection port unit having a plurality of connection ports and coupled to the plurality of functional units. A main controller unit connected to the functional units and the connection port unit. The main controller unit is configured to receive status signals from the functional units based on which it compiles a device status signal. A wireless communication unit is coupled to the main controller unit for facilitating wireless communication with a separate electronic device.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 24, 2017
    Inventor: CHI WAI LI
  • Communication device
    Patent number: D507788
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: July 26, 2005
    Assignee: Motorola, Inc.
    Inventors: Chi Wai Li, Bee Lay Khoo
  • Communication device
    Patent number: D517517
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: March 21, 2006
    Assignee: Motorola Inc.
    Inventors: Chi Wai Li, Bee Lay Khoo
  • Combined ventilating fan and light
    Patent number: D460542
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: July 16, 2002
    Assignee: Bright Commence Industrial Ltd.
    Inventor: Chi-Wai Li