Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11536487 | Diffusion muffling device, diffusion resonance muffling device, full-frequency diffusion muffling device, muffling system for ventilation channel, and muffling method using the same | Xiaojie Zhang, Yuandong WANG, Jian Kang | 2022-12-27 |