- All sections
- B - Performing operationstransporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axlesrail vehicles for use on tracks of different widthpreventing derailing of rail vehicleswheel guards, obstruction removers or the like for rail vehicles
- B61F 3/12 - Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains
Patent holdings for IPC class B61F 3/12
Total number of patents in this class: 39
10-year publication summary
|
6
|
3
|
1
|
2
|
2
|
2
|
8
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alstom Holdings | 630 |
5 |
| CRRC Tangshan Co., Ltd. | 279 |
5 |
| Siemens AG | 24020 |
3 |
| Bombardier Transportation GmbH | 572 |
3 |
| Kasgro Rail Corp. | 14 |
3 |
| Leitner S.p.A. | 85 |
2 |
| National Steel Car Limited | 149 |
2 |
| Siemens Mobility GmbH | 1875 |
2 |
| MCS Vermögensverwaltungs Aktiengesellschaft | 2 |
2 |
| Hitachi, Ltd. | 16113 |
1 |
| Siemens AG Österreich | 318 |
1 |
| Schaeffler Technologies AG & Co. KG | 11003 |
1 |
| BYD Company Limited | 6488 |
1 |
| Diversified Metal Fabricators, Inc. | 10 |
1 |
| Harsco Technologies Corporation | 2 |
1 |
| Herzog Railroad Services, Inc. | 72 |
1 |
| JAC Operations, Inc. | 57 |
1 |
| Leonardo S.p.A. | 698 |
1 |
| Sumitomo Metal Industries, Ltd. | 316 |
1 |
| The University of Tokyo | 4369 |
1 |
| Other owners | 1 |