- All sections
- B - Performing operationstransporting
- B61C - Locomotivesmotor railcars
- B61C 9/20 - Transmission systems in or for locomotives or motor railcars with IC reciprocating-piston engines hydraulic, including combinations with mechanical gearing using gearing of the hydrokinetic type with mechanical change-speed gearing
Patent holdings for IPC class B61C 9/20
Total number of patents in this class: 2
10-year publication summary
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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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1
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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
|
|---|---|---|
| ZF Friedrichshafen AG | 7285 |
1 |
| Voith Patent GmbH | 2742 |
1 |
| Other owners | 0 |