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Inventor

Yongting Liu

Inventor
Harbin, CN

Overview

1→
Patents
2001
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.

B61Kprimary
B61KAuxiliary equipment specially adapted for railways, not otherwise provided for50%
F16FSprings50%
PatentTitleYear
6,182,575'Adjustable stop-wagon retarders with locking function for wagons at high speed and disposal methods thereof'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to CHINA TDJ SYSTEM RES CT (1)· patent assignee history
2001Based in Harbin, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHINA TDJ SYSTEM RES CT12001
Locations
LocationPatentsSpan
Harbin, CN12001