- 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 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
0
|
0
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2
|
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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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
|
---|---|---|
Westinghouse Air Brake Technologies Corporation | 521 |
2 |
Hillmar Industries Ltd. | 15 |
1 |
Other owners | 0 |