- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 7/14 - Adaptations of hopper elements to railways
Patent holdings for IPC class B61D 7/14
Total number of patents in this class: 21
10-year publication summary
|
3
|
0
|
0
|
2
|
0
|
2
|
3
|
1
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gunderson LLC | 66 |
3 |
| Miner Enterprises, Inc. | 106 |
3 |
| National Steel Car Limited | 148 |
2 |
| Powerbrace Corporation | 40 |
2 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 111 |
1 |
| CSR Yangtze Co., Ltd. | 25 |
1 |
| Franz Plasser Bahnbaumaschinen-industriegesellschaft m.b.H. | 69 |
1 |
| Havellaendische Eisenbahn AG | 1 |
1 |
| JAC Operations, Inc. | 55 |
1 |
| Lexair, Inc. | 18 |
1 |
| Technische Universitat Berlin | 353 |
1 |
| The University of Newcastle | 12 |
1 |
| The University of Newcastle Research Associates Limited | 71 |
1 |
| CRRC Yangtze Co., Ltd. | 84 |
1 |
| Dimension Product Solutions LP | 8 |
1 |
| Other owners | 0 |