- 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: 85
10-year publication summary
|
12
|
5
|
10
|
4
|
2
|
5
|
0
|
2
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 429 |
10 |
| Progress Rail Services Corp | 222 |
6 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 570 |
6 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3162 |
6 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 183 |
6 |
| NTN Corporation | 4936 |
5 |
| Aktiebolaget SKF | 3053 |
4 |
| General Electric Company | 13804 |
3 |
| Siemens AG | 24329 |
2 |
| Centre National de La Recherche Scientifique | 10830 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 398 |
2 |
| ECM S.p.a. | 21 |
2 |
| Schaeffler KG | 572 |
2 |
| Union Tank Car Company | 31 |
2 |
| Universite Grenoble Alpes | 764 |
2 |
| Level s.r.o. | 3 |
2 |
| Progress Rail Signaling S.p.A. | 29 |
2 |
| Siemens AG Österreich | 317 |
1 |
| Schaeffler Technologies GmbH & Co. KG | 847 |
1 |
| NTN-SNR Roulements | 85 |
1 |
| Other owners | 18 |