Chengyong YAO

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Fujian, CN

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Patents Grantslast 30 patents

Information Patent Grant
Key downloading method, management method, downloading management m...
- Patent number 9,806,889
- Issue date Oct 31, 2017
- Fujian LANDI Commercial Equipment Co., Ltd
- Chengyong Yao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key management method and system
- Patent number 9,705,672
- Issue date Jul 11, 2017
- Fujian LANDI Commercial Equipment Co., Ltd
- Wenlong Su
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key downloading method, management method, downloading management m...
- Patent number 9,647,845
- Issue date May 9, 2017
- Fujian LANDI Commercial Equipment Co., Ltd
- Chengyong Yao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
KEY DOWNLOADING METHOD, MANAGEMENT METHOD, DOWNLOADING MANAGEMENT M...
- Publication number 20160028548
- Publication date Jan 28, 2016
- FUJIAN LANDI COMMERCIAL EQUIPMENT CO., LTD
- Chengyong YAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
KEY MANAGEMENT METHOD AND SYSTEM
- Publication number 20160028539
- Publication date Jan 28, 2016
- FUJIAN LANDI COMMERCIAL EQUIPMENT CO., LTD.
- Wenlong SU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
KEY DOWNLOADING METHOD, MANAGEMENT METHOD, DOWNLOADING MANAGEMENT M...
- Publication number 20160028547
- Publication date Jan 28, 2016
- FUJIAN LANDI COMMERCIAL EQUIPMENT CO., LTD
- Chengyong YAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE