Patents by Inventor Pitt Chang

Pitt 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).

  • Fitting
    Patent number: D903061
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: November 24, 2020
    Assignee: EKWB D.O.O.
    Inventors: Daniel George Harper, Eugene Chen, Pitt Chang
  • Fitting
    Patent number: D903062
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: November 24, 2020
    Assignee: EKWB D.O.O.
    Inventors: Daniel George Harper, Eugene Chen, Pitt Chang
  • Fitting
    Patent number: D903831
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 1, 2020
    Assignee: EKWB D.O.O.
    Inventors: Daniel George Harper, Eugene Chen, Pitt Chang
  • Fitting
    Patent number: D903832
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: December 1, 2020
    Assignee: EKWB D.O.O.
    Inventors: Daniel George Harper, Eugene Chen, Pitt Chang