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Inventor

Jiangfeng Liu

Inventor
Beijing, CN

Overview

3→
Patents
2017–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

B61Cprimary
B61CLocomotives33%
H01BCables33%
E21DShafts17%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines17%
PatentTitleYear
10,844,717Mechanical constant-resistance single prop continuous prop lifting pre-tightening device and method202010,179,594Anti-pollution-flashover locomotive roof composite insulator20199,828,005Interface breakdown-proof locomotive roof composite insulator2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2019Patents assigned to BEIJING RAILWAY INSTITUTE OF MECH & ELECTRICAL ENGINEERING CO LTD (2)· patent assignee history
2017–2019Based in Beijing, CN· patent location history
2020Patents assigned to UNIV CHINA MINING (1)· patent assignee history
2020Based in Jiangsu, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BEIJING RAILWAY INSTITUTE OF MECH & ELECTRICAL ENGINEERING CO LTD22017–2019
UNIV CHINA MINING12020
Locations
LocationPatentsSpan
Beijing, CN22017–2019
Jiangsu, CN12020