Inventor

ZHENG YONGSHU

CN4 patents

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

XIAMEN ECO LIGHTING CO LTD

2 patents

US11217568B2Jan 4, 2022

LED filament assembly and lamp including the same

XIAMEN ECO LIGHTING CO LTD0 citations61

US11018119B2May 25, 2021

LED filament assembly and lamp including the same

XIAMEN ECO LIGHTING CO LTD0 citations61

XIAMEN LEEDARSON LIGHTING CO LTD

1 patent

US11231147B2Jan 25, 2022

Light bulb apparatus having a twisted LED filament for improved luminous efficiency and light distribution

XIAMEN LEEDARSON LIGHTING CO LTD7 citations82

LEEDARSON LIGHTING CO LTD

1 patent

US12442497B2Oct 14, 2025

Lighting apparatus

LEEDARSON LIGHTING CO LTD1 citations62