- All sections
- B - Performing operationstransporting
- B60M - Power supply lines, or devices along rails, for electrically-propelled vehicles
- B60M 1/12 - Trolley linesAccessories therefor
Patent holdings for IPC class B60M 1/12
Total number of patents in this class: 79
10-year publication summary
|
7
|
7
|
10
|
7
|
5
|
4
|
5
|
5
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1868 |
11 |
| DTI Group Limited | 12 |
6 |
| Caterpillar Inc. | 10272 |
5 |
| Joy Global Underground Mining LLC | 344 |
4 |
| Mitsubishi Electric Corporation | 47971 |
3 |
| Liebherr-Mining Equipment Colmar SAS | 59 |
3 |
| Railway Technical Research Institute | 36 |
3 |
| Baoji Line Parts Co., Ltd of China Railway Electrification Bureau Group | 3 |
3 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48248 |
2 |
| Fuji Electric Co., Ltd. | 5469 |
2 |
| Herzog Railroad Services, Inc. | 72 |
2 |
| NR Electric Co., Ltd. | 346 |
2 |
| NR Engineering Co., Ltd | 305 |
2 |
| Volvo Truck Corporation | 3902 |
2 |
| Transportation IP Holdings, LLC | 990 |
2 |
| PIENAAR, Danie | 61 |
2 |
| Anglo American Technical & Sustainability Services Ltd | 70 |
2 |
| Siemens AG | 24033 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
1 |
| Toshiba Corporation | 12548 |
1 |
| Other owners | 20 |