Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10544613 | Security-enhanced garage door opener system | Gallen Ka Leung Tsui | 2020-01-28 |
| 10533361 | Wireless infrared safety sensor for garage door opener system | Gallen K.L. TSUI | 2020-01-14 |
| 9343990 | Low current consumption electrical control switch | Gallen Ka Leung Tsui | 2016-05-17 |
| 8976002 | Universal remote control system | Gallen Ka Leung Tsui | 2015-03-10 |
| D422268 | Remote control unit | — | 2000-04-04 |
| 6005508 | Remote transmitter-receiver controller system | — | 1999-12-21 |
| D417436 | Remote control unit bracket | — | 1999-12-07 |
| D410633 | Remote control unit | — | 1999-06-08 |
| 5841390 | Remote transmitter-receiver controller for multiple systems | — | 1998-11-24 |
| D393629 | Remote control unit | — | 1998-04-21 |
| 5680134 | Remote transmitter-receiver controller system | — | 1997-10-21 |
| D382251 | Receiver case | — | 1997-08-12 |
| D380895 | Keychain transmitter case | — | 1997-07-15 |
| D357919 | Remote control unit | — | 1995-05-02 |