Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10401064 | Heat pump and flow path switching apparatus | Il Yong Cho, Hyung Mo Koo, Min-Gu Chang | 2019-09-03 |
| 10223494 | Semiconductor device manufacturing method and mask manufacturing method | So-eun Shin, Ji-Soong Park, Jung-wook Shon | 2019-03-05 |