- 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: 148
10-year publication summary
|
12
|
13
|
11
|
13
|
10
|
12
|
9
|
9
|
16
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Meidensha Corporation | 871 |
23 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 413 |
8 |
| Telefonos Lineas y Centrales S.A. | 17 |
8 |
| Tesmec SpA | 40 |
7 |
| DTI Group Limited | 12 |
6 |
| Furrer + Frey AG | 35 |
6 |
| Siemens Mobility GmbH | 1697 |
6 |
| Mass Electric Construction Co. | 9 |
4 |
| Siemens AG | 24562 |
3 |
| Mitsubishi Electric Corporation | 45646 |
3 |
| Hitachi High-Tech Solutions Corporation | 12 |
3 |
| Hitachi Rail STS S.p.A. | 30 |
3 |
| Hitachi Construction Machinery Co., Ltd. | 2617 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 41903 |
2 |
| Caterpillar Inc. | 9417 |
2 |
| Alstom Holdings | 604 |
2 |
| City University | 39 |
2 |
| Herzog Railroad Services, Inc. | 60 |
2 |
| Hitachi High-Tech Fine Systems Corporation | 27 |
2 |
| Konecranes Global Corporation | 479 |
2 |
| Other owners | 52 |