- All sections
- B - Performing operationstransporting
- B61G - Couplings specially adapted for railway vehiclesdraught or buffing appliances specially adapted for railway vehicles
- B61G 11/18 - Buffers Details
Patent holdings for IPC class B61G 11/18
Total number of patents in this class: 46
10-year publication summary
|
3
|
7
|
1
|
10
|
5
|
0
|
9
|
4
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1760 |
8 |
| Miner Enterprises, Inc. | 106 |
6 |
| Rxd - Research Exchange Development AB | 8 |
3 |
| Siemens AG | 24363 |
2 |
| Central South University | 453 |
2 |
| Voith Patent GmbH | 2782 |
2 |
| Axtone SA | 25 |
2 |
| Siemens Mobility Austria GmbH | 174 |
2 |
| Strato Technology Solutions, LLC | 29 |
2 |
| Bombardier Transportation GmbH | 643 |
1 |
| CRRC Qingdao Sifang Co., Ltd. | 384 |
1 |
| CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 85 |
1 |
| Dellner Couplers AB | 109 |
1 |
| HÜBNER GmbH & Co. KG | 145 |
1 |
| Korea Railroad Research Institute | 178 |
1 |
| Niagara Frontier Transportation Authority | 3 |
1 |
| Qingdao SRI Technology Co., Ltd. | 18 |
1 |
| Shandong University of Science and Technology | 532 |
1 |
| Taiyuan University of Technology | 264 |
1 |
| Trinity Rail Group, LLC | 113 |
1 |
| Other owners | 6 |