- 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 5/14 - Side bearings
Patent holdings for IPC class B61F 5/14
Total number of patents in this class: 109
10-year publication summary
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8
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8
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7
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8
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8
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4
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2
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1
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 429 |
19 |
| Nevis Industries LLC | 63 |
7 |
| Bombardier Transportation GmbH | 596 |
6 |
| Miner Enterprises, Inc. | 104 |
6 |
| National Steel Car Limited | 146 |
6 |
| CSR Yangtze Co., Ltd. | 25 |
5 |
| Wabtec Holding Corp. | 344 |
5 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 183 |
5 |
| Transportation IP Holdings, LLC | 974 |
3 |
| Siemens AG | 24236 |
2 |
| Aktiebolaget SKF | 3067 |
2 |
| ContiTech Luftfedersysteme GmbH | 88 |
2 |
| CRRC Tangshan Co., Ltd. | 276 |
2 |
| Electro-Motive Diesel, Inc. | 70 |
2 |
| Firestone Industrial Products Company, LLC | 323 |
2 |
| Liebherr-Transportation Systems GmbH & Co. KG | 10 |
2 |
| Mitsubishi Heavy Industries Engineering, Ltd. | 194 |
2 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3189 |
2 |
| Siemens Mobility Austria GmbH | 184 |
2 |
| Siemens AG Österreich | 317 |
1 |
| Other owners | 26 |