- 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 11/04 - Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of self-applying brakes with brake-applying force derived from rotation of axle
Patent holdings for IPC class B61H 11/04
Total number of patents in this class: 3
10-year publication summary
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0
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1
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1
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0
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0
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0
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0
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1
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0
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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
|
|---|---|---|
| Nabtesco Corporation | 871 |
1 |
| Ralentizadores y Transformaciones, S.A. | 6 |
1 |
| CRRC Zhuzhou Locomotive Co., Ltd | 215 |
1 |
| Other owners | 0 |