- All sections
- E - Fixed constructions
- E01B - Permanent waypermanent-way toolsmachines for making railways of all kinds
- E01B 5/02 - Rails
Patent holdings for IPC class E01B 5/02
Total number of patents in this class: 66
10-year publication summary
|
7
|
8
|
11
|
2
|
4
|
1
|
6
|
3
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6738 |
8 |
| Koppers Delaware, Inc. | 64 |
4 |
| ArcelorMittal | 2555 |
3 |
| JFE Steel Corporation | 7387 |
3 |
| Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. | 80 |
3 |
| AZGrip.com .LLC | 4 |
2 |
| Hilltrac, Inc. | 9 |
2 |
| Korea Railroad Research Institute | 183 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1985 |
2 |
| Politechnika Warszawska | 87 |
2 |
| Voestalpine Schienen GmbH | 14 |
2 |
| 3m Innovative Properties Company | 17494 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11015 |
1 |
| Backer EHP Inc. | 30 |
1 |
| BYD Company Limited | 6279 |
1 |
| Corus UK Limited | 15 |
1 |
| CRRC Qingdao Sifang Co., Ltd. | 400 |
1 |
| DB Netz AG | 16 |
1 |
| Fuji Corporation | 3567 |
1 |
| Kinergypower International Corporation | 2 |
1 |
| Other owners | 24 |