Inventor
LI QINFENG
CN4 patents
⚠️ This page may combine multiple inventors who share the name “LI QINFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JIANGSU UNIV OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE OF ZHANGJIAGANG
2 patentsUS10518310B2Dec 31, 2019
Bending mold device for bidirectional pipe bending
JIANGSU UNIV OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE OF ZHANGJIAGANG4 citations67
US10780487B2Sep 22, 2020
Bending and molding production line
JIANGSU UNIV OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE OF ZHANGJIAGANG0 citations33