Patents by Inventor Changfeng Zeng

Changfeng Zeng 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).

  • Cake turntable
    Patent number: D853788
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: July 16, 2019
    Inventor: Changfeng Zeng
  • Cooling pad
    Patent number: D857700
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 27, 2019
    Inventor: Changfeng Zeng
  • Cooling stand
    Patent number: D868792
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: December 3, 2019
    Inventor: Changfeng Zeng
  • Door hanging organizer
    Patent number: D917200
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 27, 2021
    Inventor: Changfeng Zeng
  • Suspension boom stand
    Patent number: D935670
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: November 9, 2021
    Inventor: Changfeng Zeng