- All sections
- B - Performing operationstransporting
- B61K - Auxiliary equipment specially adapted for railways, not otherwise provided for
- B61K 13/00 - Other auxiliaries or accessories for railways
Patent holdings for IPC class B61K 13/00
Total number of patents in this class: 171
10-year publication summary
|
19
|
15
|
13
|
20
|
18
|
10
|
7
|
8
|
14
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SunCoke Technology and Development LLC | 245 |
13 |
| Hitachi, Ltd. | 16071 |
8 |
| Mitsubishi Electric Corporation | 47971 |
7 |
| The University of Tokyo | 4352 |
6 |
| Canadian Pacific Railway Company | 112 |
5 |
| Alstom Holdings | 630 |
4 |
| BNSF Railway Company | 540 |
4 |
| Nippon Steel Corporation | 6843 |
4 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3245 |
4 |
| International Business Machines Corporation | 62621 |
3 |
| Akebono Brake Industry Co., Ltd. | 364 |
3 |
| L.B. Foster Rail Technologies, Corp. | 15 |
3 |
| Nabholz Construction Corporation | 21 |
3 |
| Amsted Rail Company, Inc. | 423 |
2 |
| Central Japan Railway Company | 99 |
2 |
| Globiz Co., Ltd. | 20 |
2 |
| Harsco Technologies LLC | 139 |
2 |
| International Electronic Machines Corporation | 104 |
2 |
| Kinergypower International Corporation | 2 |
2 |
| Other owners | 88 |