- All sections
- B - Performing operationstransporting
- B61G - Couplings specially adapted for railway vehiclesdraught or buffing appliances specially adapted for railway vehicles
- B61G 3/20 - Control devices, e.g. for uncoupling
Patent holdings for IPC class B61G 3/20
Total number of patents in this class: 24
10-year publication summary
|
0
|
0
|
1
|
2
|
1
|
0
|
5
|
4
|
5
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2756 |
15 |
| CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 85 |
2 |
| Dellner Couplers AB | 105 |
2 |
| Wabtec Holding Corp. | 369 |
2 |
| Alstom Holdings | 609 |
1 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 572 |
1 |
| Stanrail Corporation | 2 |
1 |
| Other owners | 0 |