- All sections
- B - Performing operationstransporting
- B61H - Brakes or other retarding devices specially adapted for rail vehiclesarrangement or disposition thereof in rail vehicles
- B61H 7/12 - Grippers co-operating frictionally with tracks
Patent holdings for IPC class B61H 7/12
Total number of patents in this class: 36
10-year publication summary
|
4
|
4
|
0
|
4
|
2
|
2
|
3
|
1
|
0
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hillmar Industries Ltd. | 12 |
5 |
| Portal Crane Parts Ltd. | 8 |
5 |
| Pellerin Milnor Corporation | 59 |
3 |
| China University of Mining and Technology | 1316 |
2 |
| Harsco Technologies LLC | 138 |
2 |
| Inventio AG | 2419 |
2 |
| Mitsubishi Electric Corporation | 48287 |
1 |
| Raytheon Company | 8443 |
1 |
| ABB Schweiz AG | 7703 |
1 |
| Dynamic Attractions Ltd. | 6 |
1 |
| Fritel & Associates, LLC | 15 |
1 |
| Hyperloop Technologies, Inc. | 122 |
1 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
1 |
| Lewis Australia Pty Ltd | 8 |
1 |
| MACK Rides GmbH & Co. KG | 115 |
1 |
| Sandpit Innovation Pty Ltd | 3 |
1 |
| Taiyuan University of Technology | 317 |
1 |
| Kone Oyj | 2159 |
1 |
| Wuhan K-crane Ocean Lifting Technology Co., Ltd. | 3 |
1 |
| RÖMER Fördertechnik GmbH | 7 |
1 |
| Other owners | 3 |