- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 15/02 - Head or tail indicators, e.g. light
Patent holdings for IPC class B61L 15/02
Total number of patents in this class: 19
10-year publication summary
|
1
|
1
|
2
|
2
|
3
|
1
|
0
|
4
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| J.W. Speaker, Corporation | 50 |
3 |
| Siemens Mobility GmbH | 1896 |
3 |
| Siemens AG Österreich | 318 |
2 |
| Siemens Mobility, Inc. | 375 |
2 |
| Progress Rail Services Corp | 217 |
1 |
| Casco Signal Ltd. | 84 |
1 |
| CRRC Tangshan Co., Ltd. | 282 |
1 |
| Dialight Corporation | 215 |
1 |
| Voith Patent GmbH | 2742 |
1 |
| WhitServe LLC | 18 |
1 |
| Eyedog Israel Ltd. | 2 |
1 |
| Mirle Automation Corporation | 17 |
1 |
| Hitachi Rail GTS Canada Inc. | 116 |
1 |
| Other owners | 0 |