Yongzhen Tian

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for maintaining connection between terminal and network serv...
- Patent number 9,198,217
- Issue date Nov 24, 2015
- Beijing Lenovo Software Ltd.
- Hui Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MAINTAINING CONNECTION BETWEEN TERMINAL AND NETWORK SERV...
- Publication number 20120188928
- Publication date Jul 26, 2012
- LENOVO (BEIJING) CO., LTD.
- Hui Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE