Inventor

Qingjun Han

Inventor

Qingdao, CN

Overview

2019

Patent span

Performing operations

Primary field (CPC B)

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B60Lprimary

B60LPropulsion of electrically-propelled vehicles10%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for10%

B61KAuxiliary equipment specially adapted for railways, not otherwise provided for10%

B61LGuiding railway traffic10%

E05BLocks10%

G08CTransmission systems for measured values, control or similar signals10%

H01HElectric switches10%

H04LTransmission of digital information, e.g. telegraphic communication10%

H04MTelephonic communication10%

H04WWireless communication networks10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to CRRC QINGDAO SIFANG CO LTD (2)· patent assignee history

2019Based in Qingdao, CN· patent location history

2019Based in Shandong, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CRRC QINGDAO SIFANG CO LTD	2	2019

Locations

Location	Patents	Span
Qingdao, CN	1	2019
Shandong, CN	1	2019