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Changfeng Ji
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Shenzhen, CN
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Patents Grants
last 30 patents
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Patent Grant
Method for implementing security update of mobile station and a cor...
Patent number
7,933,584
Issue date
Apr 26, 2011
Huawei Technologies Co., Ltd.
Changfeng Ji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Method for implementing security update of mobile station and a cor...
Publication number
20070088948
Publication date
Apr 19, 2007
Huawei Technologies Co., Ltd.
Changfeng Ji
H04 - ELECTRIC COMMUNICATION TECHNIQUE