Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8052500 | Helicopter with main and auxiliary rotors | Chi Pok Billy Wai | 2011-11-08 |
| 8002604 | Remote controlled toy helicopter | Wong Kwok Leung | 2011-08-23 |
| 7971824 | Flying object | — | 2011-07-05 |
| 7883392 | Toy helicopter | Kwok Leung Wong | 2011-02-08 |