Inventor

LI JINGYAN

TW3 patents

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

NINEBOT BEIJING TECH CO LTD

1 patent

USD866628SNov 12, 2019

Universal chassis for transfer robot

NINEBOT BEIJING TECH CO LTD36 citations92

LI JINGYAN

1 patent

US8456875B2Jun 4, 2013

Power supply device and uniform current control method

LI JINGYAN7 citations77

HEBEI EVEREST INSTR EQUIPMENT CO LTD

1 patent

US12479652B2Nov 25, 2025

Storage tank inner wall and floating disc totally enclosed apparatus

HEBEI EVEREST INSTR EQUIPMENT CO LTD0 citations38