- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 7/12 - Hopper cars the hoppers being movable
Patent holdings for IPC class B61D 7/12
Total number of patents in this class: 9
10-year publication summary
|
3
|
0
|
1
|
0
|
1
|
1
|
0
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JAC Operations, Inc. | 57 |
2 |
| CRRC Yangtze Co., Ltd. | 84 |
2 |
| Loram Technologies, Inc. | 53 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 407 |
1 |
| CSR Yangtze Co., Ltd. | 25 |
1 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 437 |
1 |
| Other owners | 0 |