Patents by Inventor Yang Xingchang

Yang Xingchang 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).

  • Chair
    Patent number: D680345
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: April 23, 2013
    Inventor: Yang Xingchang
  • Chair backrest
    Patent number: D686440
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 23, 2013
    Inventor: Yang Xingchang
  • Chair backrest
    Patent number: D686441
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 23, 2013
    Inventor: Yang Xingchang
  • Chair back
    Patent number: D767320
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: September 27, 2016
    Inventor: Yang Xingchang
  • Chair back
    Patent number: D767321
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: September 27, 2016
    Inventor: Yang Xingchang
  • Combination chair with desk
    Patent number: D793755
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 8, 2017
    Inventor: Yang Xingchang
  • Chair base
    Patent number: D832632
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: November 6, 2018
    Inventor: Yang Xingchang