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last 30 patents
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Patent Application
Method and System For Providing Group Chat Service
Publication number
20080172463
Publication date
Jul 17, 2008
Tencent Technology (Shenzhen) Company Limited
Pengcheng Qin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Method for multi-identifier login of an instant messaging system
Publication number
20060059240
Publication date
Mar 16, 2006
Tencent Technology (Shenzhen) Company Limited
Pengcheng Qin
H04 - ELECTRIC COMMUNICATION TECHNIQUE