Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11856953 | Launderable bactericidal and virucidal fabric finish | Wing Nien Wylie O, Tsz Hin YUI, Chi Yin Alan Leung, Ka Yim YEUNG | 2024-01-02 |
| 5569868 | Sound generating book | — | 1996-10-29 |