Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8864105 | Ball valve seats and ball valves designed with equilateral triangle section methods | Changxiang Xu, Zhanji Chen | 2014-10-21 |
| 6909690 | Call admission control in telecommunication networks | Shannon P. Silvus, Xiaojun Shen | 2005-06-21 |
| 5134174 | Polypropylene microporous film | Shiru Hu, Jiayu Guan, Xianming Sun, Wei NB Wu, Wei Zhu +4 more | 1992-07-28 |