P

Inventor

LIU YUJIAN

CN8 patents
⚠️ This page may combine multiple inventors who share the name “LIU YUJIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA PETROLEUM & CHEMICAL

4 patents

LONG JUN

2 patents

LIU YUJIAN

1 patent

DALIAN FORESIGHT TECH CO LTD

1 patent