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Inventor

ZHANG GUOXIAN

US9 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG GUOXIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GROUPON INC

7 patents

Baidu online network technology beijing co ltd

1 patent

SHANGHAI INST OPTICS & FINE MECH CAS

1 patent