- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 27/60 - Testing or simulation
Patent holdings for IPC class B61L 27/60
Total number of patents in this class: 82
10-year publication summary
|
0
|
0
|
0
|
1
|
1
|
3
|
10
|
20
|
22
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BNSF Railway Company | 435 |
14 |
| Hitachi, Ltd. | 15572 |
8 |
| Siemens Mobility GmbH | 1742 |
6 |
| Progress Rail Services Corp | 236 |
5 |
| Technological Resources Pty. Limited | 458 |
4 |
| NEC Corporation | 36003 |
3 |
| Union Pacific Railroad Company | 65 |
3 |
| BYD Company Limited | 5111 |
2 |
| Casco Signal Ltd. | 59 |
2 |
| Transportation IP Holdings, LLC | 934 |
2 |
| Casco Signal Co., Ltd. | 147 |
2 |
| Konux GmbH | 32 |
2 |
| Mitsubishi Electric Corporation | 46449 |
1 |
| Caterpillar Inc. | 9647 |
1 |
| Carnegie Mellon University | 1552 |
1 |
| Deutsche Telekom AG | 1820 |
1 |
| Istanbul Teknik Universitesi | 172 |
1 |
| Korea Railroad Research Institute | 177 |
1 |
| New York Air Brake LLC | 266 |
1 |
| New York City Transit Authority | 2 |
1 |
| Other owners | 21 |