- All sections
- B - Performing operations; transporting
- B61L - Guiding railway traffic; ensuring 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
|
4
|
3
|
4
|
2
|
4
|
3
|
2
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Technological Resources Pty. Limited | 443 |
3 |
| ECM S.p.a. | 23 |
2 |
| Thales Management & Services Deutschland GmbH | 62 |
2 |
| Siemens Mobility, Inc. | 342 |
2 |
| Hitachi Rail GTS Canada Inc. | 63 |
2 |
| General Electric Company | 17801 |
1 |
| Siemens AG | 24575 |
1 |
| Business Lines Limited | 28 |
1 |
| East Japan Railway Company | 62 |
1 |
| Multiclip Co. Ltd. | 6 |
1 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 405 |
1 |
| Toho Sheet & Frame Co., Ltd | 4 |
1 |
| Virginia Electronic & Lighting, LLC | 3 |
1 |
| Vossloh Signaling USA, Inc. | 14 |
1 |
| Balmoral Engineering Pty Ltd | 7 |
1 |
| Siemens Mobility GmbH | 1641 |
1 |
| Korea Railroad Corporation | 23 |
1 |
| Focused Technology Solutions, Inc. | 17 |
1 |
| Cattron North America, Inc. | 140 |
1 |
| Yashima & Co.,Ltd. | 1 |
1 |
| Other owners | 1 |