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Shanghai, CN
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Patents Grants
last 30 patents
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Patent Grant
Bankcard transaction exchange system
Patent number
7,617,152
Issue date
Nov 10, 2009
China Unionpay Co., Ltd.
Hongfeng Chai
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
THREAD CONSTRUCTION METHOD AND DEVICE
Publication number
20240004702
Publication date
Jan 4, 2024
Glenfly Tech Co., Ltd.
Huaisheng ZHANG
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Novel Bankcard Transaction Exchange System
Publication number
20080098393
Publication date
Apr 24, 2008
Hongfeng Chai
G06 - COMPUTING CALCULATING COUNTING