P

Inventor

SONG WENWEN

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

BOEING CO

1 patent

SQ TECH SHANGHAI CORPORATION

1 patent

BEIJING SJ ENV PROT AND NEW MAT CO LTD

1 patent

BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTD

1 patent