Patents Assigned to GREENAIRTECH CO., LTD.
  • Joint pipe to duct connection
    Patent number: D936802
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: November 23, 2021
    Assignee: GREENAIRTECH CO., LTD.
    Inventor: Sung-Keun Noh
  • Connecting tube cap
    Patent number: D957938
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 19, 2022
    Assignee: GREENAIRTECH CO., LTD.
    Inventor: Sung-Keun Noh
  • Duct connection joint
    Patent number: D1118849
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: March 17, 2026
    Assignee: GREENAIRTECH CO., LTD.
    Inventor: Sung-Keun Noh
  • Duct connection joint
    Patent number: D1121130
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: March 31, 2026
    Assignee: GREENAIRTECH CO., LTD.
    Inventor: Sung-Keun Noh