Patents Assigned to Zhejiang Haochuan Rubber and Plastic Co., Ltd.
  • Water pipe with elastic band
    Patent number: D923157
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 22, 2021
    Assignee: Zhejiang Haochuan Rubber and Plastic Co., Ltd.
    Inventor: Changzheng Lin
  • Water pipe valve
    Patent number: D947998
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 5, 2022
    Assignee: Zhejiang Haochuan Rubber and Plastic Co., Ltd.
    Inventor: Changzheng Lin
  • Water pipe sprinkler
    Patent number: D956178
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: June 28, 2022
    Assignee: Zhejiang Haochuan Rubber and Plastic Co., Ltd.
    Inventor: Changzheng Lin