- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 5/12 - Visible signals
Patent holdings for IPC class B61L 5/12
Total number of patents in this class: 27
10-year publication summary
|
3
|
4
|
2
|
4
|
3
|
2
|
1
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ECM S.p.a. | 21 |
2 |
| Technological Resources Pty. Limited | 443 |
2 |
| Thales Management & Services Deutschland GmbH | 61 |
2 |
| Siemens Mobility, Inc. | 375 |
2 |
| Hitachi Rail GTS Canada Inc. | 116 |
2 |
| Siemens AG | 23913 |
1 |
| Business Lines Limited | 25 |
1 |
| East Japan Railway Company | 63 |
1 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 439 |
1 |
| Toho Sheet & Frame Co., Ltd | 5 |
1 |
| Virginia Electronic & Lighting, LLC | 3 |
1 |
| Vossloh Signaling USA, Inc. | 9 |
1 |
| Balmoral Engineering Pty Ltd | 4 |
1 |
| Siemens Mobility GmbH | 1896 |
1 |
| Korea Railroad Corporation | 23 |
1 |
| Focused Technology Solutions, Inc. | 17 |
1 |
| Cattron North America, Inc. | 146 |
1 |
| Yashima & Co.,Ltd. | 1 |
1 |
| Ledonrail Oy | 2 |
1 |
| RailPros Field Services, Inc. | 12 |
1 |
| Other owners | 2 |