HAOWEI GONG

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Danyang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Pressure maintaining gas cylinder valve
- Patent number 12,078,251
- Issue date Sep 3, 2024
- DANYANG FEILUN GAS VALVE CO., LTD.
- Zhengyun Ma
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS

Patents Applicationslast 30 patents

Information Patent Application
PRESSURE MAINTAINING GAS CYLINDER VALVE
- Publication number 20230220915
- Publication date Jul 13, 2023
- DANYANG FEILUN GAS VALVE CO.,LTD.
- ZHENGYUN MA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...