Huijie ZHANG

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Shijiazhuang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Floating ball filling-control device for cryogenic tank
- Patent number 9,890,906
- Issue date Feb 13, 2018
- Wukai Wang
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS

Patents Applicationslast 30 patents

Information Patent Application
A Floating Ball Filling-control Device for Cryogenic tank
- Publication number 20160138761
- Publication date May 19, 2016
- SHIJIAZHUANG ENRIC GAS EQUIPMENT CO., LTD
- Wukai WANG
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS