Inventor

ZHANG CHENGMING

CN4 patents

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

PETROCHINA CO LTD

1 patent

US11377941B2Jul 5, 2022

Gasflow distribution device, gas distributor, pipe string and method for separate-layer gas injection

PETROCHINA CO LTD0 citations55

YUNGU GUAN TECH CO LTD

1 patent

US11287936B2Mar 29, 2022

Touch display panel and touch display device

YUNGU GUAN TECH CO LTD0 citations45

HARBIN INST TECHNOLOGY

1 patent

US11754467B2Sep 12, 2023

Three-dimensional force loading device for motor spindle

HARBIN INST TECHNOLOGY0 citations40

HARBIN INSTITUTE TECHNOLOGY

1 patent

US9621084B2Apr 11, 2017

Thrust compensation system of dual-winding voice coil motor

HARBIN INSTITUTE TECHNOLOGY0 citations34