- All sections
- B - Performing operationstransporting
- B61K - Auxiliary equipment specially adapted for railways, not otherwise provided for
- B61K 9/12 - Measuring or surveying wheel-rims
Patent holdings for IPC class B61K 9/12
Total number of patents in this class: 158
10-year publication summary
|
15
|
19
|
15
|
13
|
9
|
10
|
9
|
11
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Electronic Machines Corporation | 104 |
9 |
| Siemens AG | 24291 |
7 |
| Amsted Rail Company, Inc. | 429 |
7 |
| Siemens Mobility GmbH | 1800 |
7 |
| Hegenscheidt-MFD GmbH & Co. KG | 66 |
6 |
| BNSF Railway Company | 492 |
5 |
| Transportation IP Holdings, LLC | 957 |
4 |
| Siemens Mobility Austria GmbH | 180 |
4 |
| General Electric Company | 13777 |
3 |
| Progress Rail Services Corp | 223 |
3 |
| Harsco Technologies LLC | 146 |
3 |
| OptaSense Holdings Limited | 194 |
3 |
| Railway Metrics and Dynamics Sweden AB | 7 |
3 |
| Siemens Mobility, Inc. | 368 |
3 |
| GE Global Sourcing LLC | 881 |
3 |
| Qlar Europe GmbH | 106 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8964 |
2 |
| Mitsubishi Electric Corporation | 47380 |
2 |
| Siemens AG Österreich | 317 |
2 |
| Alstom Holdings | 620 |
2 |
| Other owners | 77 |