- All sections
- B - Performing operations; transporting
- B61H - Brakes or other retarding devices specially adapted for rail vehicles; arrangement or disposition thereof in rail vehicles
- B61H 13/20 - Transmitting mechanisms
Patent holdings for IPC class B61H 13/20
Total number of patents in this class: 81
10-year publication summary
6
|
9
|
6
|
6
|
12
|
13
|
9
|
5
|
6
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Faiveley Transport Amiens | 58 |
12 |
Westinghouse Air Brake Technologies Corporation | 521 |
12 |
Wabtec Holding Corp. | 407 |
8 |
Faiveley Transport Nordic AB | 18 |
4 |
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
3 |
New York Air Brake Corporation | 110 |
3 |
Transportation IP Holdings, LLC | 843 |
3 |
Duplicent, LLC | 40 |
3 |
Mitsubishi Electric Corporation | 43934 |
2 |
FAIVELEY TRANSPORT ITALIA S. p. A. | 3 |
2 |
Faiveley Transport Italia S.p.A. | 131 |
2 |
Harsco Technologies LLC | 162 |
2 |
Knorr Brake Company, LLC | 10 |
2 |
Korea Railroad Research Institute | 175 |
2 |
CRRC Nanjing Puzhen Co., Ltd. | 80 |
2 |
Hitachi, Ltd. | 16452 |
1 |
Siemens AG Österreich | 316 |
1 |
CRRC Qingdao Sifang Co., Ltd. | 354 |
1 |
CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 84 |
1 |
Nabtesco Corporation | 871 |
1 |
Other owners | 14 |