- All sections
- B - Performing operations; transporting
- B61D - Body details or kinds of railway vehicles
- B61D 17/20 - Communication passages between coaches; Adaptation of coach ends therefor
Patent holdings for IPC class B61D 17/20
Total number of patents in this class: 50
10-year publication summary
|
5
|
2
|
4
|
8
|
5
|
3
|
2
|
6
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bombardier Transportation GmbH | 682 |
8 |
| Dellner Couplers AB | 96 |
5 |
| Siemens AG Österreich | 316 |
4 |
| Alstom Transport Technologies | 566 |
4 |
| BYD Company Limited | 3700 |
4 |
| Ego International B.V. | 4 |
3 |
| Siemens AG | 24990 |
2 |
| ATG Autotechnik GmbH | 13 |
2 |
| HÜBNER GmbH & Co. KG | 142 |
2 |
| Hitachi, Ltd. | 16452 |
1 |
| Siemens Transportation Systems GmbH & Co KG | 26 |
1 |
| CRRC Tangshan Co., Ltd. | 239 |
1 |
| FOGTEC Brandschutz GmbH & Co. KG | 33 |
1 |
| HÜBNER GmbH | 5 |
1 |
| Huebner GmbH | 2 |
1 |
| Lohr Industrie | 63 |
1 |
| Stadler Rail AG | 32 |
1 |
| ThyssenKrupp AG | 3086 |
1 |
| Transport Industry Development Centre B.V. | 9 |
1 |
| Trinity North American Freight Car, Inc. | 46 |
1 |
| Other owners | 5 |