- 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 1/00 - Underframes
Patent holdings for IPC class B61F 1/00
Total number of patents in this class: 84
10-year publication summary
|
4
|
5
|
13
|
8
|
5
|
5
|
4
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nevis Industries LLC | 64 |
9 |
| CRRC Tangshan Co., Ltd. | 282 |
7 |
| Siemens Mobility GmbH | 1896 |
6 |
| CRRC Qingdao Sifang Co., Ltd. | 413 |
5 |
| CRRC Shandong Co., Ltd. | 34 |
4 |
| Mitsubishi Heavy Industries Engineering, Ltd. | 194 |
4 |
| CRRC Changchun Railway Vehicles Co., Ltd. | 282 |
4 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 188 |
4 |
| Siemens Mobility Austria GmbH | 197 |
3 |
| Hitachi, Ltd. | 16221 |
2 |
| Amsted Rail Company, Inc. | 412 |
2 |
| Bombardier Transportation GmbH | 559 |
2 |
| Electro-Motive Diesel, Inc. | 70 |
2 |
| National Steel Car Limited | 145 |
2 |
| GE Global Sourcing LLC | 859 |
2 |
| CRRC Nanjing Puzhen Co., Ltd. | 104 |
2 |
| Siemens AG | 23934 |
1 |
| Siemens AG Österreich | 318 |
1 |
| Fuji Electric Co., Ltd. | 5548 |
1 |
| Airbus Defence and Space SAS | 592 |
1 |
| Other owners | 20 |