Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10618555 | Self-locking cam washer | Song Chen, Nathan Kellaway, Matthew J. O'Leary, Frederick J Zweng | 2020-04-14 |
| 9610820 | Vehicle suspension with jounce bumper and striker | Song Chen, Paul D Logan, Frederick J Zweng | 2017-04-04 |