- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 7/24 - Opening or closing means
Patent holdings for IPC class B61D 7/24
Total number of patents in this class: 34
10-year publication summary
|
2
|
3
|
6
|
1
|
2
|
0
|
3
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Trinity North American Freight Car, Inc. | 50 |
7 |
| National Steel Car Limited | 151 |
5 |
| Miner Enterprises, Inc. | 108 |
3 |
| Powerbrace Corporation | 40 |
3 |
| Ecofab Covers International Inc. | 33 |
2 |
| JAC Operations, Inc. | 52 |
2 |
| Trinity Industries, Inc. | 73 |
2 |
| Trinity Rail Group, LLC | 109 |
2 |
| Aero Transportation Products, Inc. | 9 |
1 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 111 |
1 |
| FreightCar America, Inc. | 5 |
1 |
| Herzog Railroad Services, Inc. | 66 |
1 |
| Progress Rail Locomotive Inc. | 321 |
1 |
| Railcar Innovations, LLC | 2 |
1 |
| CRRC Taiyuan Co., Ltd | 6 |
1 |
| Mineral Resources (equipment) Pty Ltd | 2 |
1 |
| Other owners | 0 |