Français Register Login

  • All sections
  • B - Performing operationstransporting
  • B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axlesrail vehicles for use on tracks of different widthpreventing derailing of rail vehicleswheel guards, obstruction removers or the like for rail vehicles
  • B61F 5/24 - Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes

Patent holdings for IPC class B61F 5/24

Total number of patents in this class: 222

10-year publication summary

18
20
29
27
20
11
13
12
7
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
KYB Corporation
1349
28
CRRC Qingdao Sifang Co., Ltd.
377
18
Kayaba Industry Co., Ltd.
358
15
Bombardier Transportation GmbH
648
14
Hitachi, Ltd.
15383
10
Siemens AG Österreich
316
9
Hitachi Automotive Systems, Ltd.
3958
8
Nippon Steel & Sumitomo Metal Corporation
1987
7
Mitsubishi Heavy Industries Engineering, Ltd.
196
6
Nippon Steel Corporation
6136
5
Zhuzhou Times New Material Technology Co., Ltd.
64
5
Siemens Mobility GmbH
1697
5
Amsted Rail Company, Inc.
430
4
CRRC Tangshan Co., Ltd.
254
4
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.)
3049
4
Siemens Mobility Austria GmbH
164
4
Alstom Holdings
604
3
BYD Company Limited
4713
3
Central Japan Railway Company
115
3
Hyperloop Technologies, Inc.
182
3
Other owners 64

  • ipowner home
  • ipqwery home
  • contact us
  • privacy policy
  • terms and conditions
© 2025 IPQwery All rights reserved