- All sections
- B - Performing operations; transporting
- B61H - Brakes or other retarding devices specially adapted for rail vehicles; arrangement or disposition thereof in rail vehicles
- B61H 7/04 - Scotch-blocks, skids, or like track-engaging shoes attached to railway vehicles
Patent holdings for IPC class B61H 7/04
Total number of patents in this class: 15
10-year publication summary
|
1
|
4
|
2
|
1
|
0
|
3
|
0
|
0
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hillmar Industries Ltd. | 15 |
4 |
| Portal Crane Parts Ltd. | 8 |
3 |
| Metrolab | 27 |
2 |
| Knorr-Bremse Gesellschaft mit Beschränkter Haftung | 150 |
1 |
| MACK Rides GmbH & Co. KG | 93 |
1 |
| Siemens Mobility GmbH | 1550 |
1 |
| Intrasys Innovative Transportsysteme GmbH | 1 |
1 |
| Klassen, Norm | 1 |
1 |
| Ralf Schwarzer Verkehrstechnik GmbH | 2 |
1 |
| Other owners | 0 |