- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 29/00 - Safety means for rail/road crossing traffic
Patent holdings for IPC class B61L 29/00
Total number of patents in this class: 63
10-year publication summary
|
5
|
4
|
7
|
2
|
9
|
5
|
1
|
4
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility, Inc. | 375 |
5 |
| AJ Technologies LLC | 20 |
4 |
| Siemens AG | 23996 |
3 |
| NEC Corporation | 37168 |
3 |
| Technological Resources Pty. Limited | 442 |
3 |
| Hitachi, Ltd. | 16163 |
2 |
| Miller Felpax Corporation | 20 |
2 |
| Quantum Engineering Inc. | 6 |
2 |
| Crsc Research & Design Institute Group Co., Ltd. | 168 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
1 |
| Robert Bosch GmbH | 44254 |
1 |
| Mitsubishi Electric Corporation | 48172 |
1 |
| Progress Rail Services Corp | 218 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
1 |
| Siemens S.A.S. | 44 |
1 |
| Alstom Holdings | 629 |
1 |
| Nippon Telegraph and Telephone Corporation | 15939 |
1 |
| BNSF Railway Company | 551 |
1 |
| Bombardier Transportation GmbH | 570 |
1 |
| GE Lighting Solutions, LLC | 177 |
1 |
| Other owners | 26 |