- All sections
- B - Performing operationstransporting
- B60M - Power supply lines, or devices along rails, for electrically-propelled vehicles
- B60M 1/28 - Manufacturing or repairing trolley lines
Patent holdings for IPC class B60M 1/28
Total number of patents in this class: 161
10-year publication summary
|
13
|
11
|
13
|
10
|
12
|
10
|
9
|
19
|
9
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Meidensha Corporation | 932 |
23 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 437 |
9 |
| Telefonos Lineas y Centrales S.A. | 17 |
8 |
| Tesmec SpA | 39 |
7 |
| Siemens Mobility GmbH | 1868 |
7 |
| DTI Group Limited | 12 |
6 |
| Furrer + Frey AG | 36 |
6 |
| Mitsubishi Electric Corporation | 47971 |
4 |
| Herzog Railroad Services, Inc. | 72 |
4 |
| Mass Electric Construction Co. | 9 |
4 |
| Siemens AG | 24033 |
3 |
| Caterpillar Inc. | 10272 |
3 |
| Hitachi Rail STS S.p.A. | 36 |
3 |
| Fuenteblandor Holding, S.L. | 4 |
3 |
| Hitachi Construction Machinery Co., Ltd. | 2749 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48248 |
2 |
| Alstom Holdings | 630 |
2 |
| BNSF Railway Company | 540 |
2 |
| City University | 33 |
2 |
| Hitachi High-Tech Fine Systems Corporation | 27 |
2 |
| Other owners | 59 |