- All sections
- B - Performing operationstransporting
- B61K - Auxiliary equipment specially adapted for railways, not otherwise provided for
- B61K 9/00 - Railway vehicle profile gaugesDetecting or indicating overheating of componentsApparatus on locomotives or cars to indicate bad track sectionsGeneral design of track recording vehicles
Patent holdings for IPC class B61K 9/00
Total number of patents in this class: 97
10-year publication summary
|
17
|
18
|
11
|
3
|
3
|
8
|
3
|
1
|
6
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1750 |
7 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 572 |
5 |
| Progress Rail Services Corp | 236 |
4 |
| Aktiebolaget SKF | 2986 |
4 |
| Bombardier Transportation GmbH | 643 |
3 |
| SmartDrive Systems, Inc. | 188 |
3 |
| Tetra Tech, Inc. | 111 |
3 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 182 |
3 |
| Amsted Rail Company, Inc. | 439 |
2 |
| BCE Inc. | 395 |
2 |
| Globiz Co., Ltd. | 19 |
2 |
| Herzog Services, Inc. | 19 |
2 |
| International Electronic Machines Corporation | 105 |
2 |
| Korea Railroad Research Institute | 177 |
2 |
| New York Air Brake LLC | 266 |
2 |
| Westinghouse Air Brake Technologies Corporation | 503 |
2 |
| GE Global Sourcing LLC | 886 |
2 |
| Korea Railroad Corporation | 23 |
2 |
| CRRC Changchun Railway Vehicles Co., Ltd. | 257 |
2 |
| Asiatic Innovations Pty Ltd | 5 |
2 |
| Other owners | 41 |