- 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 5/00 - Constructional details of bogiesConnections between bogies and vehicle underframesArrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
Patent holdings for IPC class B61F 5/00
Total number of patents in this class: 135
10-year publication summary
|
15
|
8
|
19
|
17
|
7
|
9
|
3
|
3
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 414 |
14 |
| CRRC Tangshan Co., Ltd. | 282 |
8 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 186 |
8 |
| Alstom Holdings | 629 |
7 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3277 |
7 |
| BYD Company Limited | 6549 |
5 |
| Siemens AG | 23983 |
4 |
| Bombardier Transportation GmbH | 569 |
4 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 117 |
4 |
| Nevis Industries LLC | 64 |
4 |
| Qiqihar Railway Rolling Stock Co., Ltd. | 45 |
4 |
| Wabtec Holding Corp. | 339 |
4 |
| CRRC Zhuzhou Locomotive Co., Ltd | 264 |
4 |
| Siemens AG Österreich | 318 |
3 |
| CRRC Qingdao Sifang Co., Ltd. | 409 |
3 |
| Nippon Steel Corporation | 6945 |
3 |
| TTX Company | 121 |
3 |
| Bardex Corporation | 51 |
2 |
| Kaci Intermodal Systems, LLC | 6 |
2 |
| National Research Council of Canada | 1549 |
2 |
| Other owners | 40 |