- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 17/00 - Switching systems for classification yards
Patent holdings for IPC class B61L 17/00
Total number of patents in this class: 87
10-year publication summary
|
3
|
5
|
5
|
6
|
3
|
3
|
4
|
3
|
12
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BNSF Railway Company | 489 |
13 |
| Canadian National Railway Company | 155 |
13 |
| Amsted Rail Company, Inc. | 430 |
9 |
| GE Global Sourcing LLC | 881 |
8 |
| Siemens AG | 24286 |
7 |
| Railserve, Inc. | 51 |
6 |
| Transportation IP Holdings, LLC | 952 |
5 |
| General Electric Company | 13773 |
3 |
| BYD Company Limited | 5881 |
2 |
| Co.el.da. Software SRL | 9 |
2 |
| New York Air Brake Corporation | 89 |
2 |
| Cattron North America, Inc. | 144 |
2 |
| Lockheed Martin Corporation | 3273 |
1 |
| Siemens S.A.S. | 45 |
1 |
| Casco Signal Ltd. | 65 |
1 |
| CRRC Tangshan Co., Ltd. | 268 |
1 |
| ECM S.p.a. | 21 |
1 |
| International Electronic Machines Corporation | 104 |
1 |
| Methode Electronics, Inc. | 144 |
1 |
| Murata Machinery, Ltd. | 1540 |
1 |
| Other owners | 7 |