Yongfu Yan

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for providing a ring back tone in a communication...
- Patent number 8,442,211
- Issue date May 14, 2013
- Huawei Technologies Co., Ltd.
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Service processing method, communication system and relevant devices
- Patent number 8,355,756
- Issue date Jan 15, 2013
- Huawei Technologies Co., Ltd.
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for rewarding ring back tone, donor platform, and...
- Patent number 7,940,909
- Issue date May 10, 2011
- Huawei Technologies Co., Ltd.
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SERVICE PROCESSING METHOD, COMMUNICATION SYSTEM AND RELEVANT DEVICES
- Publication number 20120015631
- Publication date Jan 19, 2012
- Huawei Technologies Co., Ltd
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Service Processing Method, Communication System and Related Device
- Publication number 20100296637
- Publication date Nov 25, 2010
- Huawei Technologies Co., Ltd
- Xuezhi SHEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR PROVIDING A RING BACK TONE IN A COMMUNICATION...
- Publication number 20090214003
- Publication date Aug 27, 2009
- Huawei Technologies Co., Ltd
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and System for Rewarding Ring Back Tone, Donor Platform, and...
- Publication number 20080198977
- Publication date Aug 21, 2008
- Huawei Technologies Co., Ltd.
- Yongfu Yan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE