Inventor

Dalian Yu

Inventor

Shandong, CN

Overview

2018–2020

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 vehicles14%

B60WConjoint control of vehicle sub-units of different type or different function14%

B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles14%

B61LGuiding railway traffic14%

G01MTesting static or dynamic balance of machines or structures14%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%

Y02TClimate change mitigation technologies related to transportation14%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2018–2020Patents assigned to CRRC QINGDAO SIFANG CO LTD (2)· patent assignee history

2018–2020Based 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	2018–2020

Locations

Location	Patents	Span
Shandong, CN	2	2018–2020