Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D926726 | Bone conduction headphone | Haofeng ZHANG, Hengnan Dai, Lei Zhong, Xin Yu | 2021-08-03 |
| D915345 | Bone conduction headphone | Haofeng ZHANG, Hengnan Dai, Lei Zhong, Xin Yu | 2021-04-06 |
| D909996 | Bone conduction headphone | Haofeng ZHANG, Hengnan Dai, Lei Zhong, Xin Yu | 2021-02-09 |
| D907002 | Bone conduction headphone | Haofeng ZHANG, Hengnan Dai, Lei Zhong, Xin Yu | 2021-01-05 |