Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6212477 | Converted-wave analysis system and method | Xianhuai Zhu, Matthew A. Brzostowski, Weizhug Wang | 2001-04-03 |
| 6182015 | High fidelity rotation method and system | Jianchao Li, Xianhuai Zhu | 2001-01-30 |