- All sections
- B - Performing operationstransporting
- B61H - Brakes or other retarding devices specially adapted for rail vehiclesarrangement or disposition thereof in rail vehicles
- B61H 13/28 - Transmitting mechanisms with variable leverage or mechanical advantage to obtain quick take-up
Patent holdings for IPC class B61H 13/28
Total number of patents in this class: 3
10-year publication summary
|
2
|
0
|
0
|
0
|
0
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0
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0
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0
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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
|
|---|---|---|
| Westinghouse Air Brake Technologies Corporation | 487 |
2 |
| Hillmar Industries Ltd. | 12 |
1 |
| Other owners | 0 |