P

Inventor

YAN JIASONG

CN5 patents
⚠️ This page may combine multiple inventors who share the name “YAN JIASONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA PETROLEUM & CHEM CORP

3 patents

AUTEL ROBOTICS CO LTD

1 patent

LONG JUN

1 patent