Patents by Inventor Wentao Chang

Wentao Chang 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).

  • LED bulb
    Patent number: D716970
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: November 4, 2014
    Assignee: CE Lighting Ltd.
    Inventors: Yonggang Wei, Wentao Chang
  • LED lamp
    Patent number: D774217
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 13, 2016
    Assignee: CE LIGHTING LTD.
    Inventors: Sumin Zhang, Wentao Chang
  • LED lamp
    Patent number: D778467
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: February 7, 2017
    Assignee: SMALUX ELECTRICAL MFG. LTD
    Inventor: Wentao Chang
  • LED lamp
    Patent number: D799724
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: October 10, 2017
    Assignee: SMALUX ELECTRICAL MFG. LTD.
    Inventors: Yonggang Wei, Wentao Chang
  • Lamp unit for a light string
    Patent number: D1037507
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: July 30, 2024
    Inventors: Songbiao Ding, Wentao Chang