Inventor

CHEN QIUYAN

CN4 patents

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

CHEN QIUYAN

2 patents

USD1062212SFeb 18, 2025

Backpack

CHEN QIUYAN1 citations51

USD1113141SFeb 17, 2026

Tote bag

CHEN QIUYAN0 citations49

SHANGHAI MARINE DIESEL ENGINE RES INST

2 patents

US11415035B2Aug 16, 2022

Diesel engine high pressure SCR ventilation and pressure stabilization system

SHANGHAI MARINE DIESEL ENGINE RES INST0 citations40

US12055085B2Aug 6, 2024

High-pressure SCR system with venting and pressure-stabilizing for marine diesel engine and ship having the same

SHANGHAI MARINE DIESEL ENGINE RES INST0 citations38