- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 19/02 - Door arrangements specially adapted for rail vehicles for carriages
Patent holdings for IPC class B61D 19/02
Total number of patents in this class: 267
10-year publication summary
|
13
|
28
|
41
|
28
|
19
|
16
|
9
|
8
|
11
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knorr-Bremse Gesellschaft mit Beschränkter Haftung | 152 |
23 |
| Nabtesco Corporation | 862 |
23 |
| BYD Company Limited | 6488 |
22 |
| Siemens Mobility GmbH | 1875 |
20 |
| Siemens AG Österreich | 318 |
13 |
| Fuji Electric Co., Ltd. | 5488 |
13 |
| Siemens AG | 24020 |
9 |
| Westinghouse Air Brake Technologies Corporation | 487 |
8 |
| Bombardier Transportation GmbH | 572 |
7 |
| Mitsubishi Electric Corporation | 48048 |
6 |
| Faiveley Transport Tours | 71 |
6 |
| Siemens Mobility Austria GmbH | 192 |
6 |
| Hitachi Kokusai Electric Inc. | 831 |
5 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 184 |
5 |
| Central Japan Railway Company | 99 |
4 |
| CRRC Tangshan Co., Ltd. | 279 |
4 |
| Nippon Sharyo, Ltd. | 77 |
4 |
| CRRC Nanjing Puzhen Co., Ltd. | 104 |
4 |
| Barat | 4 |
3 |
| CRRC Qingdao Sifang Co., Ltd. | 406 |
3 |
| Other owners | 79 |