Inventor

Sansan Ding

Inventor
Shandong, CN

Overview

7→
Patents
2018–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B61Fprimary
B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles32%
B61DBody details or kinds of railway vehicles21%
B60TVehicle brake control systems or parts thereof5%
B61GCouplings5%
B61HBrakes or other retarding devices specially adapted for rail vehicles5%
B61KAuxiliary equipment specially adapted for railways, not otherwise provided for5%
E05DHinges or suspension devices for doors, windows or wings5%
E05FDevices for moving wings into open or closed position5%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof5%
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018–2021Patents assigned to CRRC QINGDAO SIFANG CO LTD (7)· patent assignee history
2018–2019Based in Shandong, CN· patent location history
2021Based in Qingdao, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CRRC QINGDAO SIFANG CO LTD72018–2021
Locations
LocationPatentsSpan
Shandong, CN62018–2019
Qingdao, CN12021