- 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 13/00 - Actuating rail-vehicle brakes
Patent holdings for IPC class B61H 13/00
Total number of patents in this class: 150
10-year publication summary
15
|
20
|
11
|
17
|
15
|
6
|
11
|
11
|
7
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Wabtec Holding Corp. | 407 |
20 |
Westinghouse Air Brake Technologies Corporation | 521 |
14 |
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
10 |
Faiveley Transport Amiens | 58 |
9 |
Railserve, Inc. | 26 |
7 |
Mitsubishi Electric Corporation | 43934 |
5 |
Miner Enterprises, Inc. | 111 |
5 |
Amsted Rail Company, Inc. | 432 |
4 |
New York Air Brake LLC | 261 |
4 |
Powerbrace Corporation | 42 |
4 |
Rite-Hite Holding Corporation | 649 |
4 |
Davanac Inc. | 3 |
3 |
Nabtesco Corporation | 871 |
3 |
New York Air Brake Corporation | 110 |
3 |
Precision Rail and Mfg., Inc. | 26 |
3 |
Transportation IP Holdings, LLC | 843 |
3 |
Siemens AG Österreich | 316 |
2 |
Alstom Transport Technologies | 566 |
2 |
Hyperloop Technologies, Inc. | 207 |
2 |
Korea Railroad Research Institute | 175 |
2 |
Other owners | 41 |