Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6502870 | Electric motor-driven locking device for lock | — | 2003-01-07 |
| 6090741 | Catalyst combination and process for the low-temperature co-production of methanol and methyl formate in liquid phase | Yutang Wu, Xingquan Liu, Wenkai Chen, Chaoxia Jia, Shunfen Li +1 more | 2000-07-18 |