- 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 3/02 - Types of bogies with more than one axle
Patent holdings for IPC class B61F 3/02
Total number of patents in this class: 56
10-year publication summary
|
5
|
12
|
8
|
5
|
2
|
8
|
1
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Railcar Manufacturing Co., Ltd. | 184 |
9 |
| Amsted Rail Company, Inc. | 419 |
5 |
| Nevis Industries LLC | 64 |
4 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 117 |
3 |
| Advanced Truck Systems Corp. | 3 |
3 |
| Bardex Corporation | 51 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 407 |
2 |
| National Steel Car Limited | 148 |
2 |
| Qiqihar Railway Rolling Stock Co., Ltd. | 45 |
2 |
| Transportation IP Holdings, LLC | 1002 |
2 |
| CG Rail - Chinesisch-deutsches Forschungs- und Entwicklungszentrum für Bahn- und Verkehrstechnik Dresden GmbH | 20 |
2 |
| Helsingin Kaupungin Liikennelaitos -liikelaitos | 2 |
2 |
| Siemens AG Österreich | 318 |
1 |
| Alstom Holdings | 630 |
1 |
| Bombardier Transportation GmbH | 570 |
1 |
| BYD Company Limited | 6509 |
1 |
| Central Queensland University | 14 |
1 |
| Dalian Qiche Railway Rolling Stock Co., Ltd. | 6 |
1 |
| HÜBNER GmbH & Co. KG | 146 |
1 |
| Stadler Rail AG | 36 |
1 |
| Other owners | 10 |