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Inventor

ZHANG YIGONG

US5 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG YIGONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EXPRESS SCRIPTS STRATEGIC DEV INC

3 patents

CHINA NAT OFFSHORE OIL CORP

1 patent

BLUESWORD INTELLIGENT TECH CO LTD

1 patent