- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 3/04 - Wagons or vans with movable floors, e.g. rotatable or floors which can be raised or lowered
Patent holdings for IPC class B61D 3/04
Total number of patents in this class: 62
10-year publication summary
|
3
|
9
|
3
|
12
|
10
|
9
|
2
|
2
|
7
|
2
|
| 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. | 49 |
12 |
| Trinity Rail Group, LLC | 108 |
9 |
| Helrom GmbH | 13 |
6 |
| Alstom Holdings | 604 |
2 |
| Gunderson LLC | 60 |
2 |
| Kaci Intermodal Systems, LLC | 7 |
2 |
| Lohr Industrie | 62 |
2 |
| National Steel Car Limited | 149 |
2 |
| The Texas a & M University System | 1665 |
2 |
| Kaessbohrer Transport Technik GmbH | 3 |
2 |
| Siemens AG | 24542 |
1 |
| Amsted Rail Company, Inc. | 430 |
1 |
| Brandt Road Rail Corporation | 11 |
1 |
| CargoBeamer AG | 15 |
1 |
| Co.el.da. Software SRL | 10 |
1 |
| CRRC Qingdao Sifang Co., Ltd. | 377 |
1 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 105 |
1 |
| Daifuku Co., Ltd. | 969 |
1 |
| DCNS | 97 |
1 |
| Flexiwaggon AB | 14 |
1 |
| Other owners | 11 |