Changqing Huang

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Jiaxing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Diaphragm type ultra-thin pressure gauge
- Patent number 11,346,739
- Issue date May 31, 2022
- Zhejiang Fumao Machinery Co., Ltd.
- Changqing Huang
- G01 - MEASURING TESTING
Information Patent Grant
Relievable safety press gauge
- Patent number 10,571,352
- Issue date Feb 25, 2020
- Zhejiang Fumao Machinery Co., Ltd.
- Changqing Huang
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS

Patents Applicationslast 30 patents

Information Patent Application
DIAPHRAGM TYPE ULTRA-THIN PRESSURE GAUGE
- Publication number 20200200635
- Publication date Jun 25, 2020
- Zhejiang Fumao Machinery Co., Ltd.
- CHANGQING HUANG
- G01 - MEASURING TESTING
Information Patent Application
RELIEVABLE SAFETY PRESS GAUGE
- Publication number 20180372572
- Publication date Dec 27, 2018
- Zhejiang Fumao Machinery Co., Ltd.
- Changqing Huang
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS