- All sections
- B - Performing operations; transporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles; rail vehicles for use on tracks of different width; preventing derailing of rail vehicles; wheel guards, obstruction removers or the like for rail vehicles
- B61F 5/38 - Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
Patent holdings for IPC class B61F 5/38
Total number of patents in this class: 173
10-year publication summary
17
|
15
|
11
|
16
|
12
|
14
|
12
|
11
|
4
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Heavy Industries, Ltd. | 8538 |
16 |
Bombardier Transportation GmbH | 655 |
16 |
Mitsubishi Heavy Industries Engineering, Ltd. | 198 |
10 |
Siemens Mobility GmbH | 1644 |
8 |
Siemens AG Österreich | 315 |
7 |
Transportation IP Holdings, LLC | 906 |
7 |
Kawasaki Railcar Manufacturing Co., Ltd. | 177 |
7 |
Siemens AG | 24565 |
6 |
Amsted Rail Company, Inc. | 436 |
5 |
National Steel Car Limited | 149 |
5 |
Parallel Systems, Inc. | 31 |
4 |
CRRC Meishan Co., Ltd. | 17 |
4 |
BYD Company Limited | 4320 |
3 |
Korea Railroad Research Institute | 174 |
3 |
Siemens Mobility Austria GmbH | 151 |
3 |
Traila AG | 12 |
3 |
Alstom Holdings | 510 |
2 |
Hyperloop Technologies, Inc. | 182 |
2 |
Liebherr-Transportation Systems GmbH & Co. KG | 10 |
2 |
Nippon Steel Corporation | 6012 |
2 |
Other owners | 58 |