Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377456 | Tee type connector pipe manufacturing method | — | 2025-08-05 |
| 12214396 | Seam forming apparatus for elbow duct | Ok Tae Kim, Dong Woo Kang | 2025-02-04 |
| 12151272 | Duct cutting-and-forming device for elbow duct manufacturing device | Ok Tae Kim, Ki Tae Kim | 2024-11-26 |
| 12145186 | Apparatus for forming flange of circular duct | Ok Tae Kim | 2024-11-19 |
| 11975373 | Elbow-shaped duct manufacturing apparatus | — | 2024-05-07 |
| D957938 | Connecting tube cap | — | 2022-07-19 |
| D936802 | Joint pipe to duct connection | — | 2021-11-23 |
| 10493511 | Apparatus for manufacturing elbow-shaped duct | — | 2019-12-03 |