Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970677 | Air-conditioning vent vane adjusting device | Mao-Li Song, Zhi-Ping Zhang | 2018-05-15 |
| 9777939 | Retractable structure for air-conditioning vent | Mao-Li Song, Hong-Tao Yang, Yu-Jie He, Bin Xiao | 2017-10-03 |