Inventor · disambiguated record
Qingjun Han
Also filed as: HAN QINGJUN
3 granted patents·1 pending application·0 citations·filing 2015–2017
38Inventor score
Files withCRRC QINGDAO SIFANG CO LTD4
Top patents by PatentIndex Score
4 records- 0142US10464524B2Alarming and unlocking deviceCRRC QINGDAO SIFANG CO LTD·Filed 2016·Granted Nov 5, 2019·0 cites·19 claims
- 0238US2019305348A1Method, Device and System for Controlling Fuel Cell and Rail VehicleCRRC QINGDAO SIFANG CO LTD·Filed 2017·Application pending·0 cites
- 0335US11125006B2Method, system and device for controlling door of railway vehicleCRRC QINGDAO SIFANG CO LTD·Filed 2016·Granted Sep 21, 2021·0 cites·10 claims
- 0433US10207725B2Method and device for transmitting signal among compartments of trainCRRC QINGDAO SIFANG CO LTD·Filed 2015·Granted Feb 19, 2019·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Qingjun Han files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →