- All sections
- B - Performing operationstransporting
- B61K - Auxiliary equipment specially adapted for railways, not otherwise provided for
- B61K 9/04 - Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
Patent holdings for IPC class B61K 9/04
Total number of patents in this class: 83
10-year publication summary
|
12
|
5
|
11
|
4
|
2
|
5
|
0
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 412 |
10 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
6 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3289 |
6 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 186 |
6 |
| Progress Rail Services Corp | 217 |
5 |
| NTN Corporation | 4925 |
5 |
| Aktiebolaget SKF | 3156 |
5 |
| General Electric Company | 13982 |
3 |
| Siemens AG | 23956 |
2 |
| Centre National de La Recherche Scientifique | 11111 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 410 |
2 |
| ECM S.p.a. | 21 |
2 |
| Union Tank Car Company | 31 |
2 |
| Universite Grenoble Alpes | 780 |
2 |
| Level s.r.o. | 3 |
2 |
| Progress Rail Signaling S.p.A. | 29 |
2 |
| Siemens AG Österreich | 318 |
1 |
| Schaeffler Technologies GmbH & Co. KG | 847 |
1 |
| NTN-SNR Roulements | 84 |
1 |
| AB SKF | 126 |
1 |
| Other owners | 17 |