Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281650 | Oil pump not requiring changing positions of suction port and discharge port according to forward rotation and reverse rotation | Do Jae Joo, Seong Wook Cha, Hui Do Ryu | 2025-04-22 |