- All sections
- B - Performing operationstransporting
- B61H - Brakes or other retarding devices specially adapted for rail vehiclesarrangement or disposition thereof in rail vehicles
- B61H 9/00 - Brakes characterised by, or modified for, their application to special railway systems or purposes
Patent holdings for IPC class B61H 9/00
Total number of patents in this class: 49
10-year publication summary
|
8
|
9
|
5
|
3
|
3
|
7
|
2
|
3
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Westinghouse Air Brake Technologies Corporation | 503 |
7 |
| New York Air Brake LLC | 266 |
3 |
| Bombardier Transportation GmbH | 645 |
2 |
| Hyperloop Technologies, Inc. | 180 |
2 |
| Rail-veyor Technologies Global Inc. | 26 |
2 |
| GE Global Sourcing LLC | 888 |
2 |
| Siemens Mobility GmbH | 1732 |
2 |
| Transportation IP Holdings, LLC | 933 |
2 |
| Siemens AG | 24421 |
1 |
| Alstom Holdings | 612 |
1 |
| Amsted Rail Company, Inc. | 439 |
1 |
| CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 85 |
1 |
| Dynamic Attractions Ltd. | 6 |
1 |
| East China Jiaotong University | 40 |
1 |
| Faiveley Transport Italia S.p.A. | 159 |
1 |
| Firestone Industrial Products Company, LLC | 328 |
1 |
| High Velocity Designs, LLC | 8 |
1 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
1 |
| Korea Railroad Research Institute | 177 |
1 |
| Nabtesco Corporation | 888 |
1 |
| Other owners | 15 |