Inventor
ZHANG HUIQING
CN12 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG HUIQING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CRRC QINGDAO SIFANG CO LTD
6 patentsUS11738782B2Aug 29, 2023
Activation control method and apparatus for railway train
CRRC QINGDAO SIFANG CO LTD0 citations55
US9682714B2Jun 20, 2017
Switching circuit for implementing coupling at random end of train
CRRC QINGDAO SIFANG CO LTD1 citations50
US10464524B2Nov 5, 2019
Alarming and unlocking device
CRRC QINGDAO SIFANG CO LTD0 citations49
US11125006B2Sep 21, 2021
Method, system and device for controlling door of railway vehicle
CRRC QINGDAO SIFANG CO LTD0 citations47
US11247704B2Feb 15, 2022
Activation apparatus of railway vehicle and railway vehicle having activation apparatus
CRRC QINGDAO SIFANG CO LTD0 citations43
US10207725B2Feb 19, 2019
Method and device for transmitting signal among compartments of train
CRRC QINGDAO SIFANG CO LTD0 citations33