Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12370592 | Convexity adjusting mechanism for working roll of straightening machine | Yizhong Cao, Hao Yuan, Da Ha, Nan Yang | 2025-07-29 |
| 9325226 | Electric motor having a commutator and brushes in sliding contact therewith | Christof Frick, Zhendong Mi, Guoxian Wu | 2016-04-26 |