Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12424314 | Communication system and method for respiratory protection device, and respiratory protection system | Dong Liang | 2025-09-23 |
| 12415096 | Adaptive auxiliary air supply respirator and control method thereof | Dong Liang, Hongjun Zhao | 2025-09-16 |
| 12364881 | Method and system for controlling pressure in mask, and respirator | Dong Liang, Hongjun Zhao | 2025-07-22 |
| 12276695 | Chip testing method and apparatus | — | 2025-04-15 |