Patents by Inventor Chang Eun Ahn

Chang Eun Ahn 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).

  • Digital information display apparatus
    Patent number: D797558
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 19, 2017
    Inventor: Chang Eun Ahn
  • Iron
    Patent number: D838073
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: January 8, 2019
    Inventor: Chang Eun Ahn
  • Speaker
    Patent number: D836597
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 25, 2018
    Inventor: Chang Eun Ahn
  • Iron
    Patent number: D838425
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 15, 2019
    Inventor: Chang Eun Ahn