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Inventor

ZENG RONGHUI

CN4 patents
⚠️ This page may combine multiple inventors who share the name “ZENG RONGHUI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA PETROLEUM & CHEM CORP

2 patents

CHINA PETROLEUM & CHEMICAL

1 patent

CHINA PETROLEUM & CHENICAL COR

1 patent