Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11389271 | Nickel-titanium file root canal preparation instrument | Yanfeng Li, Yihe Li, Yuan Lv, Guangquan Chai, Yidan Sun +1 more | 2022-07-19 |
| 11293657 | Air conditioning system and pressure ratio control method and device thereof | Yongfeng Xu, Meibing Xiong, Linxing Ren | 2022-04-05 |