- All sections
- B - Performing operationstransporting
- B61G - Couplings specially adapted for railway vehiclesdraught or buffing appliances specially adapted for railway vehicles
- B61G 3/22 - Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by locks consisting of pivoted latches
Patent holdings for IPC class B61G 3/22
Total number of patents in this class: 3
10-year publication summary
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1
|
2
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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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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
|
|---|---|---|
| Rail-veyor Technologies Global Inc. | 26 |
2 |
| CRRC Dalian Co., Ltd. | 67 |
1 |
| Other owners | 0 |