- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 7/06 - Hopper cars with openings capable of discharging both between and outside the wheels
Patent holdings for IPC class B61D 7/06
Total number of patents in this class: 7
10-year publication summary
|
2
|
0
|
2
|
1
|
0
|
1
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Trinity Rail Group, LLC | 110 |
3 |
| Bradken Resources Pty Limited | 153 |
1 |
| CSR Yangtze Co., Ltd. | 25 |
1 |
| Trinity Industries, Inc. | 73 |
1 |
| CRRC Yangtze Co., Ltd. | 84 |
1 |
| Other owners | 0 |