Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489957 | Three dimensional geometric modeling system with multiple concurrent geometric engines | Tao Han, Qingxiang Niu | 2002-12-03 |
| 6392645 | Three dimensional geometric modeling system | Tao Han | 2002-05-21 |