Pengfei Chen

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Device and method for continuous mixing of solid drag reducer
- Patent number 12,331,601
- Issue date Jun 17, 2025
- PetroChina Company Limited
- Pengfei Chen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DEVICE AND METHOD FOR CONTINUOUS MIXING OF SOLID DRAG REDUCER
- Publication number 20220098941
- Publication date Mar 31, 2022
- PetroChina Company Ltd.
- Pengfei Chen
- E21 - EARTH DRILLING MINING