- 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 19/00 - Wheel guardsBumpersObstruction removers or the like
Patent holdings for IPC class B61F 19/00
Total number of patents in this class: 37
10-year publication summary
|
3
|
5
|
2
|
3
|
2
|
1
|
0
|
1
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24562 |
5 |
| Siemens Mobility GmbH | 1697 |
4 |
| Bombardier Transportation GmbH | 648 |
3 |
| Siemens AG Österreich | 316 |
2 |
| Alstom Holdings | 604 |
2 |
| CNGmotive, Inc. | 21 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 377 |
2 |
| Weir-Jones Engineering Consultants Ltd. | 27 |
2 |
| Central South University | 428 |
1 |
| Changchun Railway Vehicles Co., Ltd. | 39 |
1 |
| CRRC Tangshan Co., Ltd. | 254 |
1 |
| David L. Osment | 32 |
1 |
| GMT Gummi-metall-technik GmbH | 27 |
1 |
| Nexter Systems | 153 |
1 |
| Nippon Sharyo, Ltd. | 79 |
1 |
| PortaCo, Inc. | 2 |
1 |
| Korea Brass Co., Ltd. | 2 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3049 |
1 |
| DB Fernverkehr AG | 4 |
1 |
| Teknikbolaget K. Samuelsson AB | 2 |
1 |
| Other owners | 3 |