- 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 15/28 - Axle-boxes modified to ensure electrical conductivity
Patent holdings for IPC class B61F 15/28
Total number of patents in this class: 11
10-year publication summary
|
1
|
3
|
0
|
1
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0
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1
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0
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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
|
|---|---|---|
| Schunk Transit Systems GmbH | 80 |
3 |
| Siemens AG | 23996 |
1 |
| Siemens AG Österreich | 318 |
1 |
| Alstom Holdings | 629 |
1 |
| Schaeffler Technologies AG & Co. KG | 11093 |
1 |
| Aktiebolaget SKF | 3142 |
1 |
| Amsted Rail Company, Inc. | 416 |
1 |
| Stemmann-Technik GmbH | 48 |
1 |
| Transportation IP Holdings, LLC | 1003 |
1 |
| Other owners | 0 |