Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12238467 | Speaker box | Shuwen Wu, Guoxiu Feng, Mushu Xiao | 2025-02-25 |
| 12129526 | Gradient steel material having surface layer with ferrite and inner layer with ferrite + pearlite and manufacturing method | Suoquan Zhang, Sihai Jiao, Xiaojun Liang | 2024-10-29 |
| 11516566 | Speaker box | Guoxiu Feng | 2022-11-29 |
| 9998821 | Speaker box | Renxuan Qin, Peng Niu | 2018-06-12 |