Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11401898 | Method for manufacturing a waterproof felt duct and a waterproof felt duct | Won Seop Choi, Ju-Ho Han, Jun-haeng Cho | 2022-08-02 |
| 11253806 | Air cleaner having built-in valve and intake system thereof | Seong-Youn Kwak, Ju-Ho Han, Won Seop Choi | 2022-02-22 |