- All sections
- B - Performing operationstransporting
- B61D - Body details or kinds of railway vehicles
- B61D 19/00 - Door arrangements specially adapted for rail vehicles
Patent holdings for IPC class B61D 19/00
Total number of patents in this class: 220
10-year publication summary
|
23
|
14
|
24
|
21
|
21
|
19
|
9
|
7
|
12
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nabtesco Corporation | 887 |
25 |
| Knorr-Bremse Gesellschaft mit Beschränkter Haftung | 148 |
19 |
| National Steel Car Limited | 151 |
9 |
| Siemens Mobility GmbH | 1750 |
9 |
| Trinity Rail Group, LLC | 109 |
8 |
| Fuji Electric Co., Ltd. | 5214 |
7 |
| Gebr. Bode GmbH & Co. KG | 59 |
7 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 182 |
7 |
| Siemens AG | 24353 |
6 |
| Bombardier Transportation GmbH | 643 |
6 |
| CRRC Tangshan Co., Ltd. | 261 |
6 |
| Nanjing Kangni Mechanical & Electrical Co., Ltd. | 35 |
5 |
| Westinghouse Air Brake Technologies Corporation | 503 |
5 |
| CRRC Yangtze Co., Ltd. | 84 |
5 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3076 |
5 |
| BYD Company Limited | 5207 |
4 |
| Trinity North American Freight Car, Inc. | 50 |
4 |
| Transportation IP Holdings, LLC | 939 |
4 |
| Bode - Die Tür GmbH | 67 |
4 |
| Central Japan Railway Company | 107 |
3 |
| Other owners | 72 |