- All sections
- B - Performing operationstransporting
- B61G - Couplings specially adapted for railway vehiclesdraught or buffing appliances specially adapted for railway vehicles
- B61G 11/14 - Buffers absorbing shocks by mechanical friction actionCombinations of mechanical shock-absorbers and springs
Patent holdings for IPC class B61G 11/14
Total number of patents in this class: 16
10-year publication summary
|
2
|
5
|
2
|
0
|
2
|
0
|
2
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Miner Enterprises, Inc. | 102 |
4 |
| Trinity Rail Group, LLC | 109 |
2 |
| Amsted Rail Company, Inc. | 423 |
1 |
| Bombardier Transportation GmbH | 572 |
1 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 117 |
1 |
| Dellner Couplers AB | 112 |
1 |
| Korea Railroad Research Institute | 185 |
1 |
| T a Savery & Co., Ltd. | 5 |
1 |
| CRRC Qiqihar Rolling Stock Co., Ltd. Dalian Research & Development Center | 2 |
1 |
| Siemens Mobility GmbH | 1868 |
1 |
| Limited Liability Company "tehsintek" | 1 |
1 |
| Alstom Holdings | 29 |
1 |
| Other owners | 0 |