Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9333614 | External circular polisher with double polishing wheels | Liang Huang | 2016-05-10 |
| 8894470 | Counter-rotating polisher | Kewei Wang, Kunyuan Chu, Xiaoping Xu, Ligang Zhu | 2014-11-25 |
| 8662965 | Counter-rotating polisher | Kewei Wang, Kunyuan Chu, Xiaoping Xu, Ligang Zhu | 2014-03-04 |