Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6299146 | Retangular suspending downcomer directing tray | Xiaomei Yu, Jingzhong Zhu, Ou Li, Zuming Zheng, Kejian Yao +1 more | 2001-10-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6299146 | Retangular suspending downcomer directing tray | Xiaomei Yu, Jingzhong Zhu, Ou Li, Zuming Zheng, Kejian Yao +1 more | 2001-10-09 |