Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10731397 | Barrier control system with auxiliary power supply and auxiliary power supply for barrier control system | Gallen K.L. TSUI | 2020-08-04 |
| 9485124 | Method and apparatus for multiple bit encoding | Gallen Ka Leung Tsui | 2016-11-01 |
| 8957766 | Universal transmitter | Gallen Ka Leung Tsui | 2015-02-17 |
| 8922352 | Remote control device with password functions | Gallen Ka Leung Tsui | 2014-12-30 |
| 8446101 | Control switch | Gallen Ka Leung Tsui | 2013-05-21 |
| 8310339 | Method and system for triggering an operating device | Gallen Ka Leung Tsui | 2012-11-13 |
| D635102 | Wall switch | Gallen Ka Leung Tsui | 2011-03-29 |
| 7899130 | Transmitter for operating multiple devices | — | 2011-03-01 |
| 7884701 | External barrier operator device | Gallen Ka Leung Tsui | 2011-02-08 |
| 7863777 | Low power switching circuit | Gallen Ka Leung Tsui | 2011-01-04 |
| D621795 | Wall switch | Gallen Ka Leung Tsui | 2010-08-17 |
| 7688014 | System and method for a moveable barrier operator | Ping Hung Tang, Gallen Ka Leung Tsui | 2010-03-30 |
| 7254182 | Transmitter for operating multiple devices | — | 2007-08-07 |
| 7205908 | Systems and methods for proximity control of a barrier | Gallen Ka Leung Tsui | 2007-04-17 |
| 7170248 | Systems and methods for operating a barrier | Gallen Ka Leung Tsui | 2007-01-30 |
| 7170426 | Systems and methods for proximity control of a barrier | Gallen Ka Leung Tsui | 2007-01-30 |
| 7088265 | Systems and methods for proximity control of a barrier | Gallen Ka Leung Tsui | 2006-08-08 |
| 7006802 | Universal transmitter | — | 2006-02-28 |
| 6956460 | Transmitter for operating rolling code receivers | — | 2005-10-18 |
| 6556813 | Universal transmitter | — | 2003-04-29 |
| 6441719 | Remote signaling device for a rolling code security system | — | 2002-08-27 |
| 6359558 | Low power audible alarm relay device for a rolling code security system | — | 2002-03-19 |
| 6249673 | Universal transmitter | — | 2001-06-19 |
| 6243000 | Wireless rolling code security system | — | 2001-06-05 |
| D377458 | Transmitter case | — | 1997-01-21 |