Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D622318 | Fire tornado device | Her Mann Tsai, William Wai Ho Cheung | 2010-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D622318 | Fire tornado device | Her Mann Tsai, William Wai Ho Cheung | 2010-08-24 |