Inventor

LI QIANFENG

CN3 patents

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

DELTA ELECTRONICS SHANGHAI CO

2 patents

US11588337B2Feb 21, 2023

Centralized charging cabinet provided with isolation area and charging area

DELTA ELECTRONICS SHANGHAI CO3 citations71

US11728639B2Aug 15, 2023

Transformer short-circuit protection method and transformer short-circuit protection device

DELTA ELECTRONICS SHANGHAI CO0 citations45

TAIZHOU JIAOJIANG LANGYI E COMMERCE FIRM

1 patent

USD1073773SMay 6, 2025

Sunglasses

TAIZHOU JIAOJIANG LANGYI E COMMERCE FIRM1 citations49