Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7849896 | Bondhead alignment tool for a bonding apparatus | Ping Kong Choy, Chung Sheung Yung, Hon Yu Peter Ng | 2010-12-14 |
| 7363998 | Walk-substituting cart chassis structure | — | 2008-04-29 |
| 7044249 | Connecting structure of front and rear frame parts of a cart for people to ride on | — | 2006-05-16 |
| 6439331 | Chassis of an electric walk-substituting car | — | 2002-08-27 |