Patents Assigned to Gwo Chyang Biotech Co., Ltd.
  • Face mask
    Patent number: D763515
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: August 9, 2016
    Assignee: Gwo Chyang Biotech Co., Ltd.
    Inventor: Chia-Fu Chang
  • Packaging bag
    Patent number: D787311
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 23, 2017
    Assignee: Gwo Chyang Biotech Co., Ltd.
    Inventor: Chia-Fu Chang
  • Pouch for packaging mask pack
    Patent number: D819452
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: June 5, 2018
    Assignee: Gwo Chyang Biotech Co., Ltd.
    Inventor: Chia-Fu Chang
  • Face mask
    Patent number: D861244
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 24, 2019
    Assignee: GWO Chyang Biotech Co., Ltd.
    Inventor: Chia-Fu Chang