Assignee
BEIJING WATCH DATA SYS CO LTD
CN·3 granted patents·4 pending applications·7 citations·filing 2006–2008
Top patents by PatentIndex Score
7 records- 0176US7999697B2WLAN-based no-stop electronic toll collection system and the implementation thereofBEIJING WATCH DATA SYS CO LTD·Filed 2006·Granted Aug 16, 2011·3 cites·19 claims
- 0260US7742009B2Antenna for the plug-in dual-interface smart cardBEIJING WATCH DATA SYS CO LTD·Filed 2006·Granted Jun 22, 2010·4 cites·11 claims
- 0343US2007186115A1Dynamic Password Authentication System and Method thereofBEIJING WATCH DATA SYS CO LTD·Filed 2007·Application pending·0 cites
- 0442US2008209215A1Method of Physical Authentication and an Electronic DeviceBEIJING WATCH DATA SYS CO LTD·Filed 2006·Application pending·0 cites
- 0542US2009307291A1Smart card storage system and file management method thereinBEIJING WATCH DATA SYS CO LTD·Filed 2007·Application pending·0 cites
- 0635US2010191870A1Equipment and method to implement adaptive functions of communication protocolsBEIJING WATCH DATA SYS CO LTD·Filed 2008·Application pending·0 cites
- 0726US7734707B2Don't disturb service management system and implementation thereofBEIJING WATCH DATA SYS CO LTD·Filed 2006·Granted Jun 8, 2010·0 cites·16 claims
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