Patents Assigned to Dong Yang Chemical Co., Ltd.
  • Airtight container for food
    Patent number: D662783
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: July 3, 2012
    Assignee: Dong Yang Chemical Co., Ltd.
    Inventor: Sun Kab Lee
  • Lid for a container
    Patent number: D913744
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 23, 2021
    Assignee: DONG YANG CHEMICAL CO., LTD.
    Inventor: Sun Ok Kil