Jianqiao WENG

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Standard sample for measuring rock porosity by helium method
- Patent number 11,692,923
- Issue date Jul 4, 2023
- Hongyu Du
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
STANDARD SAMPLE FOR MEASURING ROCK POROSITY BY HELIUM METHOD
- Publication number 20230051513
- Publication date Feb 16, 2023
- Keyuan Engineering Technology Testing Center of Sichuan Province
- Hongyu DU
- G01 - MEASURING TESTING