Liyun ZHENG

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Lighting devices for automatically switching between a visible ligh...
- Patent number 11,914,178
- Issue date Feb 27, 2024
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Liyun Zheng
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Surveillance device
- Patent number 11,860,516
- Issue date Jan 2, 2024
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Liyun Zheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Surveillance device
- Patent number 11,835,847
- Issue date Dec 5, 2023
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Liyun Zheng
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Surveillance device
- Patent number 11,092,883
- Issue date Aug 17, 2021
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Liyun Zheng
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
SURVEILLANCE DEVICE
- Publication number 20210364898
- Publication date Nov 25, 2021
- Zhejiang Dahua Technology CO., LTD.
- Liyun ZHENG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SURVEILLANCE DEVICE
- Publication number 20210364897
- Publication date Nov 25, 2021
- Zhejiang Dahua Technology CO., LTD.
- Liyun ZHENG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIGHTING DEVICES FOR AUTOMATICALLY SWITCHING BETWEEN A VISIBLE LIGH...
- Publication number 20210311233
- Publication date Oct 7, 2021
- Zhejiang Dahua Technology CO., LTD.
- Liyun ZHENG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SURVEILLANCE DEVICE
- Publication number 20200225562
- Publication date Jul 16, 2020
- Zhejiang Dahua Technology CO., LTD.
- Liyun ZHENG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY