Issued Patents 2025
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406650 | Apparatuses and methods for improved noise reduction and voice capture in respiratory protective devices | En Yi CHEN, Li Cheng | 2025-09-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406650 | Apparatuses and methods for improved noise reduction and voice capture in respiratory protective devices | En Yi CHEN, Li Cheng | 2025-09-02 |