Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10850637 | Electrified railway power grid system without negative sequence in whole process and without power supply networks at intervals | Xiaofang Guan | 2020-12-01 |
| 9163361 | Welding structure with double-inclined surface of no bumping and no vibration seamless rail with high load-bearing capability | Minghui Wang, Xiaofang Guan | 2015-10-20 |
| 8082771 | Adjustable hydraulic press with both upper and lower double action | Minghui Wang, Xiaofang Guan | 2011-12-27 |