- All sections
- B - Performing operations; transporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles; rail vehicles for use on tracks of different width; preventing derailing of rail vehicles; wheel guards, obstruction removers or the like for rail vehicles
- B61F 5/14 - Side bearings
Patent holdings for IPC class B61F 5/14
Total number of patents in this class: 112
10-year publication summary
|
10
|
10
|
8
|
8
|
10
|
8
|
6
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 437 |
19 |
| Nevis Industries LLC | 62 |
7 |
| Bombardier Transportation GmbH | 658 |
6 |
| Miner Enterprises, Inc. | 107 |
6 |
| National Steel Car Limited | 149 |
6 |
| CSR Yangtze Co., Ltd. | 25 |
5 |
| Wabtec Holding Corp. | 386 |
5 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 176 |
5 |
| Transportation IP Holdings, LLC | 904 |
3 |
| Siemens AG | 24572 |
2 |
| Aktiebolaget SKF | 2834 |
2 |
| ContiTech Luftfedersysteme GmbH | 89 |
2 |
| CRRC Tangshan Co., Ltd. | 249 |
2 |
| Electro-Motive Diesel, Inc. | 72 |
2 |
| Firestone Industrial Products Company, LLC | 327 |
2 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 568 |
2 |
| Liebherr-Transportation Systems GmbH & Co. KG | 10 |
2 |
| Mitsubishi Heavy Industries Engineering, Ltd. | 198 |
2 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3009 |
2 |
| Siemens Mobility Austria GmbH | 151 |
2 |
| Other owners | 28 |