P

Inventor

HAN WENZHONG

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

DAGANG OIL FIELD COMPANY OF CNPC

3 patents

RES INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT DAGANG OIL FIELD OF CNPC

1 patent