Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10696366 | Propulsion apparatus for ship | Hyun-Sang Park, Tae-Goo Lee, Dong Hyun Lee, Tae-Sik Lee | 2020-06-30 |
| 9963211 | Propulsion apparatus for ship and ship having the same | Dong Hyun Lee, Hyun-Sang Park, Sung-Wook Chung, Jae Kwon Jung, Nam-Yong Heo | 2018-05-08 |
| 9862460 | Propeller for ship, and assembling method and disassembling method therefor | Kwang Jun Paik, Hyun-Sang Park, Jin-Suk Lee, Tae-Goo Lee, Ji Nam Kim +10 more | 2018-01-09 |
| 8192240 | Contra-rotating propeller supported on rudder horn of ship | Soon Ho Choi, Hee Sang Cho, Seong Sun Rhyu | 2012-06-05 |