Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8894470 | Counter-rotating polisher | Jianchu Huang, Kewei Wang, Xiaoping Xu, Ligang Zhu | 2014-11-25 |
| 8662965 | Counter-rotating polisher | Jianchu Huang, Kewei Wang, Xiaoping Xu, Ligang Zhu | 2014-03-04 |