Patents by Inventor Chang-Kwon Han

Chang-Kwon Han 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).

  • Air conditioning ceiling grille
    Patent number: D433116
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: October 31, 2000
    Assignee: Carrier Corporation
    Inventors: Chang-Kwon Han, Dae-Won Kim