Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11060521 | Rotary compressor having a rolling piston with coupling groove | Bumdong Sa | 2021-07-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11060521 | Rotary compressor having a rolling piston with coupling groove | Bumdong Sa | 2021-07-13 |