- 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: 139
10-year publication summary
|
7
|
15
|
8
|
19
|
17
|
7
|
9
|
3
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 430 |
15 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 179 |
8 |
| Alstom Holdings | 604 |
7 |
| CRRC Tangshan Co., Ltd. | 254 |
7 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3045 |
7 |
| Bombardier Transportation GmbH | 648 |
5 |
| BYD Company Limited | 4693 |
5 |
| Siemens AG | 24542 |
4 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 105 |
4 |
| Nevis Industries LLC | 63 |
4 |
| Nippon Steel Corporation | 6122 |
4 |
| Qiqihar Railway Rolling Stock Co., Ltd. | 45 |
4 |
| Wabtec Holding Corp. | 370 |
4 |
| CRRC Zhuzhou Locomotive Co., Ltd | 247 |
4 |
| Siemens AG Österreich | 316 |
3 |
| CRRC Qingdao Sifang Co., Ltd. | 377 |
3 |
| TTX Company | 120 |
3 |
| The University of Tokyo | 4123 |
3 |
| Bardex Corporation | 47 |
2 |
| Kaci Intermodal Systems, LLC | 7 |
2 |
| Other owners | 41 |