- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 23/02 - Folding steps for railway vehicles
Patent holdings for IPC class B61D 23/02
Total number of patents in this class: 132
10-year publication summary
|
8
|
21
|
9
|
8
|
9
|
9
|
13
|
6
|
11
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1866 |
14 |
| Knorr-Bremse Gesellschaft mit Beschränkter Haftung | 152 |
10 |
| Bombardier Transportation GmbH | 573 |
7 |
| Siemens AG Österreich | 318 |
6 |
| BYD Company Limited | 6430 |
6 |
| MOR/ryde International, Inc. | 32 |
6 |
| Siemens AG | 24050 |
5 |
| Gebr. Bode GmbH & Co. KG | 59 |
5 |
| Bode - Die Tür GmbH | 69 |
5 |
| Toray Industries, Inc. | 7092 |
4 |
| Sumitomo Rubber Industries, Ltd. | 4723 |
4 |
| The Braun Corporation | 237 |
4 |
| Nanjing Kangni Mechanical & Electrical Co., Ltd. | 38 |
4 |
| Siemens Mobility Austria GmbH | 192 |
4 |
| CRRC Changchun Railway Vehicles Co., Ltd. | 281 |
4 |
| Alstom Holdings | 631 |
3 |
| Magna International Inc. | 1199 |
3 |
| Stadler Rail AG | 36 |
3 |
| Westinghouse Air Brake Technologies Corporation | 487 |
3 |
| National Railroad Passenger Corporation | 125 |
2 |
| Other owners | 30 |