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Inventor

HUANG YANFANG

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

HUANG YANFANG

1 patent

BLACK SESAME INTERNATIONAL HOLDING LTD

1 patent

CHINA PETROLEUM & CHEM CORP

1 patent

GAO XINTING

1 patent