- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 17/20 - Communication passages between coachesAdaptation of coach ends therefor
Patent holdings for IPC class B61D 17/20
Total number of patents in this class: 57
10-year publication summary
|
4
|
8
|
5
|
3
|
3
|
8
|
2
|
1
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bombardier Transportation GmbH | 559 |
7 |
| Dellner Couplers AB | 113 |
6 |
| BYD Company Limited | 6681 |
5 |
| Siemens AG Österreich | 318 |
4 |
| HÜBNER GmbH & Co. KG | 146 |
4 |
| Alstom Holdings | 633 |
3 |
| Ego International B.V. | 4 |
3 |
| Siemens AG | 23943 |
2 |
| ATG Autotechnik GmbH | 13 |
2 |
| Stadler Rail AG | 36 |
2 |
| Hitachi, Ltd. | 16237 |
1 |
| Alstom Transport Technologies | 109 |
1 |
| CRRC Qingdao Sifang Co., Ltd. | 413 |
1 |
| CRRC Tangshan Co., Ltd. | 283 |
1 |
| FOGTEC Brandschutz GmbH & Co. KG | 30 |
1 |
| HÜBNER GmbH | 5 |
1 |
| Igus GmbH | 295 |
1 |
| Instituto Superior Tecnico | 163 |
1 |
| Lohr Industrie | 56 |
1 |
| ThyssenKrupp AG | 3337 |
1 |
| Other owners | 9 |