P

Inventor

YAN LONGFEI

CN2 patents
⚠️ This page may combine multiple inventors who share the name “YAN LONGFEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PRINX CHENGSHAN QINGDAO INDUSTRIAL RES AND DESIGN CO LTD

1 patent

UNIV SHANGHAI JIAOTONG

1 patent