- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 5/00 - Local operating mechanisms for points or track-mounted scotch-blocksVisible or audible signalsLocal operating mechanisms for visible or audible signals
Patent holdings for IPC class B61L 5/00
Total number of patents in this class: 42
10-year publication summary
|
4
|
2
|
5
|
3
|
2
|
1
|
2
|
4
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24525 |
4 |
| Vossloh Signaling USA, Inc. | 12 |
3 |
| Siemens Signalling Company Ltd. | 3 |
3 |
| Ansaldo STS USA, Inc. | 38 |
2 |
| Poma | 112 |
2 |
| Schwihag AG | 31 |
2 |
| Siemens Mobility, Inc. | 349 |
2 |
| Hitachi Rail STS USA, Inc. | 25 |
2 |
| BYD Company Limited | 4941 |
1 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 367 |
1 |
| Kyosan Electric Mfg. Co., Ltd. | 172 |
1 |
| Pillar Innovations, LLC | 4 |
1 |
| Railway Equipment Company, Inc. | 35 |
1 |
| Tetra Tech, Inc. | 111 |
1 |
| Westinghouse Air Brake Technologies Corporation | 503 |
1 |
| Wave2 LLC | 1 |
1 |
| Triple-S GmbH | 10 |
1 |
| Alstom Holdings | 20 |
1 |
| Casco Signal Co., Ltd. | 146 |
1 |
| Crsc Research & Design Institute Group Co., Ltd. | 99 |
1 |
| Other owners | 10 |