Chengrong Zhuang

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Jinhua, CN

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Patents Grantslast 30 patents

Information Patent Grant
Automatic leveling laser marking indication device
- Patent number 10,823,564
- Issue date Nov 3, 2020
- Zhejiang Rongsheng Tools Co., Ltd.
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Grant
Electronic circuit for acousto-optoelectronic angle indication and...
- Patent number 9,885,570
- Issue date Feb 6, 2018
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Grant
Pointer type angle measuring device
- Patent number 9,709,374
- Issue date Jul 18, 2017
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Grant
Pointer-type angle measuring device with wireless power supply for...
- Patent number 9,644,951
- Issue date May 9, 2017
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Automatic Leveling Laser Marking Indication Device
- Publication number 20190162535
- Publication date May 30, 2019
- Zhejiang Rongsheng Tools Co., Ltd.
- Chengrong ZHUANG
- G01 - MEASURING TESTING
Information Patent Application
Electronic Circuit for Acousto-Optoelectronic Angle Indication and...
- Publication number 20170219344
- Publication date Aug 3, 2017
- ZHEJIANG RONGSHENG TOOL CO., LTD.
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Application
Pointer Type Angle Measuring Device
- Publication number 20160334200
- Publication date Nov 17, 2016
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Application
Three Dimensional Angle Measuring Device
- Publication number 20160084648
- Publication date Mar 24, 2016
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Application
Pointer-type Angle Measuring Device with Wireless Power Supply for...
- Publication number 20160061593
- Publication date Mar 3, 2016
- ZHEJIANG RONGSHENG TOOL CO., LTD
- Chengrong Zhuang
- G01 - MEASURING TESTING
Information Patent Application
Spirit level with LED indicators
- Publication number 20140101950
- Publication date Apr 17, 2014
- Chengrong Zhuang
- G01 - MEASURING TESTING