- All sections
- B - Performing operations; transporting
- B61H - Brakes or other retarding devices specially adapted for rail vehicles; arrangement or disposition thereof in rail vehicles
- B61H 9/04 - Brakes characterised by, or modified for, their application to special railway systems or purposes for preventing or controlling movement in one direction or, selectively, in either direction
Patent holdings for IPC class B61H 9/04
Total number of patents in this class: 6
10-year publication summary
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0
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2
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0
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0
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0
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2
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2
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1
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1
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bombardier Transportation GmbH | 682 |
2 |
| Transportation IP Holdings, LLC | 843 |
2 |
| International Safety Components Limited | 17 |
1 |
| Zhuzhou CRRC Times Electric Co., Ltd. | 108 |
1 |
| Other owners | 0 |