Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939779 | Hearing protection device | John Jenkins, Wei Sun, Yongjun Chen, Lei Jiang | 2021-12-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939779 | Hearing protection device | John Jenkins, Wei Sun, Yongjun Chen, Lei Jiang | 2021-12-28 |