Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11319863 | Flow control valve apparatus | Cheol Soo Park, Jun Sik Park, Bong Sang Lee, Seok Yoon Chang, Ho Young Jang | 2022-05-03 |
| 11221077 | Flow control valve apparatus | Cheol Soo Park, Bong Sang Lee, Jun Sik Park, Seok Yoon Chang, Ho Young Jang +2 more | 2022-01-11 |
| 8549977 | Apparatus for opening and closing breech block and cannon having the same | Sang Tae Ahn, Kuk-Jeong Kang, Cheon-Gon Jeon | 2013-10-08 |