- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 17/12 - Roofs
Patent holdings for IPC class B61D 17/12
Total number of patents in this class: 142
10-year publication summary
|
14
|
9
|
8
|
16
|
13
|
10
|
4
|
4
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1750 |
22 |
| Siemens AG | 24353 |
17 |
| Bombardier Transportation GmbH | 643 |
15 |
| CRRC Qingdao Sifang Co., Ltd. | 384 |
10 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 182 |
10 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3076 |
7 |
| Siemens Mobility Austria GmbH | 171 |
6 |
| CRRC Tangshan Co., Ltd. | 261 |
5 |
| Mitsubishi Electric Corporation | 46590 |
4 |
| Hitachi, Ltd. | 15599 |
3 |
| Ecofab Covers International Inc. | 34 |
3 |
| CRRC Zhuzhou Locomotive Co., Ltd | 261 |
3 |
| Siemens AG Österreich | 317 |
2 |
| Alstom Holdings | 614 |
2 |
| CNGmotive, Inc. | 21 |
2 |
| CSR Yangtze Co., Ltd. | 25 |
2 |
| Gunderson LLC | 64 |
2 |
| Trinity Rail Group, LLC | 109 |
2 |
| Eaton Intelligent Power Limited | 6039 |
2 |
| Geomni, Inc. | 35 |
2 |
| Other owners | 21 |