- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 7/26 - Opening or closing means mechanical
Patent holdings for IPC class B61D 7/26
Total number of patents in this class: 49
10-year publication summary
|
4
|
9
|
4
|
1
|
4
|
3
|
4
|
0
|
0
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Miner Enterprises, Inc. | 102 |
7 |
| Powerbrace Corporation | 39 |
7 |
| National Steel Car Limited | 149 |
5 |
| CRRC Yangtze Co., Ltd. | 84 |
4 |
| Gunderson LLC | 73 |
3 |
| Trinity Industries, Inc. | 71 |
3 |
| A. Stucki Co. | 76 |
2 |
| Chevron Phillips Chemical Company LP | 1861 |
2 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 117 |
2 |
| CSR Yangtze Co., Ltd. | 25 |
2 |
| CRRC Yangtze Corporation Limited | 5 |
2 |
| Railcar Innovations, LLC | 2 |
2 |
| Aero Transportation Products, Inc. | 9 |
1 |
| Qiqihar Railway Rolling Stock Co., Ltd. | 45 |
1 |
| Union Tank Car Company | 31 |
1 |
| Trinity Rail Group, LLC | 109 |
1 |
| CRRC Meishan Co., Ltd. | 27 |
1 |
| Qiqihar Railway Rolling Stock Co.,Ltd. Dalian R&D Centre | 10 |
1 |
| Greenbrier Central, LLC | 16 |
1 |
| A. Stucki Compnay | 17 |
1 |
| Other owners | 0 |