Inventor
HE YIFENG
CN7 patents
⚠️ This page may combine multiple inventors who share the name “HE YIFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HE YIFENG
3 patentsCHINA PETROLEUM & CHEM CORP
2 patentsUS12358934B2Jul 15, 2025
Phosphorus-containing compound and preparation method and use thereof
CHINA PETROLEUM & CHEM CORP0 citations47
US11898118B2Feb 13, 2024
Photoluminescent lubricating grease composition, photoluminescent material and the preparation methods thereof
CHINA PETROLEUM & CHEM CORP0 citations47