Method, system and device for controlling door of railway vehicle
US-11125006-B2 · Sep 21, 2021 · US
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Han Qingjun patents
Han Qingjun is listed as an inventor on 7 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Han Qingjun |
| Total patents | 7 |
| First publication | Mar 2, 2017 |
| Latest publication | Sep 21, 2021 |
Notable patents
Publications ranked by popularity score, then publication date.
Alarming and unlocking device
US-10464524-B2 · Nov 5, 2019 · US
Method, Device and System for Controlling Fuel Cell and Rail Vehicle
US-2019305348-A1 · Oct 3, 2019 · US
Method and device for transmitting signal among compartments of train
US-10207725-B2 · Feb 19, 2019 · US
Alarming and unlocking device
US-2019023222-A1 · Jan 24, 2019 · US
Method, system and device for controlling door of railway vehicle
US-2019024436-A1 · Jan 24, 2019 · US
Method and device for transmitting signal among compartments of train
US-2017057525-A1 · Mar 2, 2017 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Crrc Qingdao Sifang Co Ltd | 7 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B61L15/0018 | 4 |
| B61L15/0072 | 4 |
| B61L15/0036 | 4 |
| H04M11/04 | 2 |
| H01H19/46 | 2 |