- 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: 86
10-year publication summary
|
0
|
0
|
0
|
1
|
1
|
3
|
10
|
20
|
22
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BNSF Railway Company | 444 |
14 |
| Hitachi, Ltd. | 15627 |
9 |
| Siemens Mobility GmbH | 1760 |
7 |
| Progress Rail Services Corp | 237 |
6 |
| Technological Resources Pty. Limited | 448 |
4 |
| NEC Corporation | 36186 |
3 |
| Union Pacific Railroad Company | 65 |
3 |
| BYD Company Limited | 5341 |
2 |
| Casco Signal Ltd. | 59 |
2 |
| Transportation IP Holdings, LLC | 944 |
2 |
| Casco Signal Co., Ltd. | 147 |
2 |
| Konux GmbH | 32 |
2 |
| Mitsubishi Electric Corporation | 46757 |
1 |
| Caterpillar Inc. | 9686 |
1 |
| Carnegie Mellon University | 1566 |
1 |
| Deutsche Telekom AG | 1825 |
1 |
| Duos Technologies, Inc. | 33 |
1 |
| Istanbul Teknik Universitesi | 173 |
1 |
| Korea Railroad Research Institute | 178 |
1 |
| New York Air Brake LLC | 267 |
1 |
| Other owners | 22 |