- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 23/16 - Track circuits specially adapted for section blocking
Patent holdings for IPC class B61L 23/16
Total number of patents in this class: 69
10-year publication summary
|
6
|
5
|
10
|
7
|
4
|
8
|
5
|
5
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BNSF Railway Company | 477 |
13 |
| Mitsubishi Electric Corporation | 47014 |
9 |
| Hitachi, Ltd. | 15726 |
6 |
| Casco Signal Co., Ltd. | 151 |
4 |
| Avante International Technology, Inc. | 33 |
3 |
| The Nippon Signal Co., Ltd. | 57 |
3 |
| Siemens Mobility, Inc. | 365 |
3 |
| KB Signaling Inc. | 98 |
3 |
| Rockwell Automation Technologies, Inc. | 2726 |
2 |
| Universal City Studios LLC | 2677 |
2 |
| General Electric Company | 13827 |
1 |
| Siemens AG | 24323 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8910 |
1 |
| Toshiba Corporation | 12543 |
1 |
| Siemens Industry, Inc. | 1563 |
1 |
| Alstom Signaling, Inc. | 22 |
1 |
| BYD Company Limited | 5525 |
1 |
| Casco Signal Ltd. | 64 |
1 |
| East Japan Railway Company | 66 |
1 |
| Harsco Technologies LLC | 146 |
1 |
| Other owners | 11 |