- 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 1/12 - Cross bearers
Patent holdings for IPC class B61F 1/12
Total number of patents in this class: 54
10-year publication summary
|
7
|
8
|
5
|
6
|
4
|
5
|
3
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi, Ltd. | 15895 |
8 |
| CRRC Qingdao Sifang Co., Ltd. | 398 |
5 |
| JAC Operations, Inc. | 55 |
4 |
| Siemens Mobility GmbH | 1839 |
4 |
| Nippon Sharyo, Ltd. | 78 |
3 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3189 |
3 |
| Siemens Mobility Austria GmbH | 184 |
3 |
| Siemens AG Österreich | 317 |
2 |
| Bombardier Transportation GmbH | 591 |
2 |
| National Steel Car Limited | 146 |
2 |
| Oren Technologies, LLC | 32 |
2 |
| Rail-veyor Technologies Global Inc. | 26 |
2 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 183 |
2 |
| Siemens AG | 24200 |
1 |
| Toray Industries, Inc. | 7038 |
1 |
| Bradken Resources Pty Limited | 148 |
1 |
| Deutsche Bahn AG | 229 |
1 |
| Ego International B.V. | 4 |
1 |
| Gunderson LLC | 71 |
1 |
| Universidad Eafit | 40 |
1 |
| Other owners | 5 |