Jiancheng Du

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Guangdong Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method, apparatus and system for bearing circuit switched domain se...
- Patent number 9,572,141
- Issue date Feb 14, 2017
- Huawei Technologies Co., Ltd.
- Zongquan Tang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, apparatus and system for bearing circuit switched domain se...
- Patent number 9,565,683
- Issue date Feb 7, 2017
- Huawei Technologies Co., Ltd.
- Zongquan Tang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct amplifying station and positioning method for mobile station...
- Patent number 7,283,787
- Issue date Oct 16, 2007
- Huawei Technologies Co., LTD.
- Xinxi Diao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD, APPARATUS AND SYSTEM FOR BEARING CIRCUIT SWITCHED DOMAIN SE...
- Publication number 20150071221
- Publication date Mar 12, 2015
- Huawei Technologies Co., Ltd
- Zongquan Tang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD, APPARATUS AND SYSTEM FOR BEARING CIRCUIT SWITCHED DOMAIN SE...
- Publication number 20100135215
- Publication date Jun 3, 2010
- Huawei Technologies Co., Ltd
- Zongquan Tang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Direct amplifying station and positioning method for mobile station...
- Publication number 20050153653
- Publication date Jul 14, 2005
- Xinxi Diao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE