Qingquan Liu

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Horn assembly and dual-listening bluetooth headset
- Patent number 11,076,218
- Issue date Jul 27, 2021
- SHENZHEN ALEX TECHNOLOGY CO., LTD
- Qingquan Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for processing message
- Patent number 8,725,115
- Issue date May 13, 2014
- Huawei Technologies Co., Ltd.
- Qingquan Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
HORN ASSEMBLY AND DUAL-LISTENING BLUETOOTH HEADSET
- Publication number 20210136480
- Publication date May 6, 2021
- SHENZHEN ALEX TECHNOLOGY CO., LTD
- QINGQUAN LIU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR PROCESSING MESSAGE
- Publication number 20100056110
- Publication date Mar 4, 2010
- Huawei Technologies Co., Ltd
- Qingquan Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE