Inventor
CHEN QINGYAN
CN4 patents
⚠️ This page may combine multiple inventors who share the name “CHEN QINGYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHENZHEN ANGEL DRINKING WATER INDUSTRY GROUP CORP
2 patentsUS12258951B2Mar 25, 2025
Transmission assembly of pump head of diaphragm booster pump, pump head of diaphragm booster pump, and diaphragm booster pump
SHENZHEN ANGEL DRINKING WATER INDUSTRY GROUP CORP0 citations54
US12253072B2Mar 18, 2025
Pump head of diaphragm booster pump, diaphragm booster pump, water treatment device and method of operating pump head
SHENZHEN ANGEL DRINKING WATER INDUSTRY GROUP CORP0 citations54