Yifeng HE

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Photoluminescent lubricating grease composition, photoluminescent m...
- Patent number 11,898,118
- Issue date Feb 13, 2024
- China Petroleum and Chemical Corporation
- Xinyang Liu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
Phosphorus-containing Compound and Preparation Method and Use Thereof
- Publication number 20220289771
- Publication date Sep 15, 2022
- China Petroleum and Chemical Corporation
- Minyang ZHUANG
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
PHOTOLUMINESCENT LUBRICATING GREASE COMPOSITION, PHOTOLUMINESCENT M...
- Publication number 20210355409
- Publication date Nov 18, 2021
- China Petroleum and Chemical Corporation
- Xinyang LIU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...