- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 29/04 - Gates for level crossings
Patent holdings for IPC class B61L 29/04
Total number of patents in this class: 51
10-year publication summary
|
1
|
5
|
2
|
7
|
3
|
7
|
8
|
3
|
6
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility, Inc. | 363 |
20 |
| C.D.L. Electric Company, Inc. | 33 |
7 |
| Siemens Industry, Inc. | 1474 |
3 |
| MTR Technologies, Inc. | 5 |
2 |
| Railway Equipment Company, Inc. | 39 |
2 |
| Railway Equipment Company | 2 |
2 |
| KB Signaling Inc. | 98 |
2 |
| Ford Global Technologies, LLC | 20917 |
1 |
| GateArm Technologies, Inc. | 5 |
1 |
| Hi-Lex Corporation | 366 |
1 |
| Magnetic Autocontrol GmbH | 38 |
1 |
| The Nippon Signal Co., Ltd. | 57 |
1 |
| Somyung Co.,Ltd | 2 |
1 |
| Westinghouse Air Brake Technologies Corporation | 502 |
1 |
| Modesto and Empire Traction Company | 5 |
1 |
| Siemens Mobility GmbH | 1764 |
1 |
| Pružne Građevine d.o.o. | 1 |
1 |
| Australian Mitigation Engineering Developments Pty Ltd | 17 |
1 |
| Access Masters, LLC | 1 |
1 |
| Crsc International Co., Ltd. | 3 |
1 |
| Other owners | 0 |