Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1061840 | Air disinfection and sanitization device | Johnny Chan, Johnshon Yiu-Nam Lau | 2025-02-11 |
| D1059702 | Automated disinfection device | Johnson Yiu-Nam LAU | 2025-01-28 |
| D1059705 | Disinfection machine | Yuk Ching Cheng | 2025-01-28 |