Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8302568 | Variable compression ratio apparatus for vehicle engine | Jae Sang Lee | 2012-11-06 |
| 8272355 | Variable compression ratio apparatus and engine using the same | — | 2012-09-25 |