- 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 13/34 - Actuating rail-vehicle brakes - Details
Patent holdings for IPC class B61H 13/34
Total number of patents in this class: 132
10-year publication summary
9
|
16
|
19
|
11
|
17
|
19
|
9
|
7
|
10
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Westinghouse Air Brake Technologies Corporation | 521 |
32 |
New York Air Brake LLC | 261 |
16 |
Wabtec Holding Corp. | 407 |
10 |
Faiveley Transport Amiens | 58 |
8 |
Amsted Rail Company, Inc. | 432 |
7 |
New York Air Brake Corporation | 110 |
5 |
Siemens Mobility GmbH | 1550 |
5 |
BNSF Railway Company | 328 |
3 |
Faiveley Transport Italia S.p.A. | 131 |
3 |
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
3 |
Nabtesco Corporation | 871 |
3 |
Harsco Technologies LLC | 162 |
2 |
Ireco, LLC | 26 |
2 |
Korea Railroad Research Institute | 175 |
2 |
Mitsubishi Electric Research Laboratories, Inc. | 1010 |
2 |
RFPC Holding Corp. | 32 |
2 |
Wonder Investments Inc. | 2 |
2 |
Siemens AG | 24990 |
1 |
Alstom Transport Technologies | 566 |
1 |
Bombardier Transportation GmbH | 682 |
1 |
Other owners | 22 |