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Inventor

Quanmei Guan

Inventor
Tangshan, CN

Overview

1→
Patents
2016
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B61Dprimary
B61DBody details or kinds of railway vehicles50%
B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles50%
PatentTitleYear
9,409,580'Obstacle removing and energy absorbing device and leading car of motor train unit'2016

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2016Patents assigned to TANGSHAN RAILWAY VEHICLE CO (1)· patent assignee history
2016Based in Tangshan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TANGSHAN RAILWAY VEHICLE CO12016
Locations
LocationPatentsSpan
Tangshan, CN12016