- 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 15/26 - Covers; Sealing thereof
Patent holdings for IPC class B61F 15/26
Total number of patents in this class: 29
10-year publication summary
2
|
3
|
1
|
6
|
5
|
4
|
2
|
0
|
1
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Aktiebolaget SKF | 2700 |
8 |
CRRC Qingdao Sifang Co., Ltd. | 354 |
4 |
Schaeffler Technologies AG & Co. KG | 8880 |
3 |
Southwest Jiaotong University | 120 |
2 |
NTN Corporation | 5008 |
1 |
NTN-SNR Roulements | 96 |
1 |
Alstom Transport Technologies | 566 |
1 |
Amsted Rail Company, Inc. | 432 |
1 |
Bombardier Transportation GmbH | 682 |
1 |
ECM S.p.a. | 24 |
1 |
Politecnico di Torino | 315 |
1 |
Sumitomo Riko Company Limited | 962 |
1 |
Wafangdian Bearing Group Corp., Ltd. | 17 |
1 |
Siemens Mobility Austria GmbH | 141 |
1 |
CRRC Nanjing Puzhen Co., Ltd. | 80 |
1 |
Wafangdian Bearing Group National Bearing Engineering Technology Research Center Co., Ltd. | 8 |
1 |
Other owners | 0 |