Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12310270 | Implement descending stability control method and system and tractor | Xiao Zhang, Luyun Zhang, Hongbo Zhang | 2025-05-27 |
| 7403534 | Method of implementing IP telephone gatekeeper group and gatekeeper system | Kewen HU, Ligang Wang, Qing Zeng, Yi Ji, Jian-Jung Ying +2 more | 2008-07-22 |