Patents by Inventor Jin-Jung Yan

Jin-Jung Yan 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).

  • Water seal trap
    Patent number: D778414
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: February 7, 2017
    Inventor: Jin-Jung Yan
  • Roof drain
    Patent number: D781401
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: March 14, 2017
    Inventor: Jin-Jung Yan
  • Drainpipe structure
    Patent number: D781402
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: March 14, 2017
    Inventor: Jin-Jung Yan