- All sections
- B - Performing operations; transporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles; rail vehicles for use on tracks of different width; preventing derailing of rail vehicles; wheel guards, obstruction removers or the like for rail vehicles
- B61F 5/12 - Bolster supports or mountings incorporating dampers
Patent holdings for IPC class B61F 5/12
Total number of patents in this class: 95
10-year publication summary
|
7
|
12
|
17
|
11
|
11
|
7
|
8
|
4
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 436 |
21 |
| Nevis Industries LLC | 62 |
17 |
| National Steel Car Limited | 149 |
10 |
| Hitachi Automotive Systems, Ltd. | 3962 |
5 |
| Wabtec Holding Corp. | 386 |
4 |
| CRRC Qingdao Sifang Co., Ltd. | 372 |
3 |
| CRRC Qiqihar Rolling Stock Co., Ltd. | 103 |
3 |
| CRRC Tangshan Co., Ltd. | 251 |
3 |
| CRRC Zhuzhou Locomotive Co., Ltd | 235 |
3 |
| Transportation IP Holdings, LLC | 906 |
3 |
| Bombardier Transportation GmbH | 655 |
2 |
| BYD Company Limited | 4320 |
2 |
| Siemens Mobility GmbH | 1644 |
2 |
| Hutchinson | 461 |
1 |
| Leitner S.p.A. | 82 |
1 |
| Restruck Technologies Inc. | 2 |
1 |
| Restruk Technologies Inc. | 1 |
1 |
| Standard Car Truck Company | 16 |
1 |
| Starlite Co., Ltd. | 11 |
1 |
| Westinghouse Air Brake Technologies Corporation | 512 |
1 |
| Other owners | 10 |