Zhichong Han

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Access control device and authentication control method
- Patent number 10,505,936
- Issue date Dec 10, 2019
- Huawei Technologies Co., Ltd.
- Zhichong Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, apparatus, device and system for generating DHCP snooping b...
- Patent number 9,883,010
- Issue date Jan 30, 2018
- Huawei Technologies Co., Ltd.
- Zhichong Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Access Control Device and Authentication Control Method
- Publication number 20170063863
- Publication date Mar 2, 2017
- Huawei Technologies Co., Ltd
- Zhichong Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method, Apparatus, Device and System for Generating DHCP Snooping B...
- Publication number 20140244733
- Publication date Aug 28, 2014
- Huawei Technologies Co., Ltd
- Zhichong Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE