LexDanaLexDanabeta
Inventor

CHANG FENG

Inventor
CN

Overview

1→
Patents
2025
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.

B60Sprimary
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for33%
B61CLocomotives33%
B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles33%
PatentTitleYear
12,454,251End cover assembly, air cylinder, tread cleaner and railway vehicle2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to CRRC CHANGZHOU TECH MARK IND CO LTD (1)· patent assignee history
2025Patents assigned to CRRC QISHUYAN INST CO LTD (1)· patent assignee history
2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CRRC CHANGZHOU TECH MARK IND CO LTD12025
CRRC QISHUYAN INST CO LTD12025
Locations
LocationPatentsSpan
CN12025