Inventor

JIANG QIANGJUN

CN3 patents

⚠️ This page may combine multiple inventors who share the name “JIANG QIANGJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CRRC YANGTZE CO LTD

1 patent

US10906562B2Feb 2, 2021

Movable side wall and opening/closing mechanism for railroad boxcars

CRRC YANGTZE CO LTD0 citations43

CRRC YANGTZE CORP LTD

1 patent

US9789883B2Oct 17, 2017

Two-level locking device, hopper car bottom door and hopper car

CRRC YANGTZE CORP LTD0 citations38

CRRC YANGTZE CORPORATION LTD

1 patent

US10640133B2May 5, 2020

Connecting rod type two-level locking device, hopper car bottom door and hopper car

CRRC YANGTZE CORPORATION LTD0 citations32