- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 9/44 - Fastening the rail on the tie-plate
Patent holdings for IPC class E01B 9/44
Total number of patents in this class: 22
10-year publication summary
|
4
|
4
|
0
|
6
|
1
|
1
|
2
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vossloh-Werke GmbH | 96 |
4 |
| Pandrol Limited | 94 |
3 |
| Voestalpine VAE GmbH | 34 |
3 |
| Amsted Rail Company, Inc. | 432 |
2 |
| Voestalpine Nortrak Inc. | 4 |
2 |
| Vossloh Cogifer (Société anonyme) | 17 |
2 |
| Racine Railroad Products, Inc. | 18 |
1 |
| Obshhestvo S Ogranichennoj Otvetstvennost`yu Nauchno-proizvodstvennaya Firma "master Klass" | 1 |
1 |
| voestalpine Railway Systems GmbH | 26 |
1 |
| Gantry Railing Ltd. | 2 |
1 |
| Voestalpine Railway Systems Nortrak LLC | 37 |
1 |
| China Railway Baoji Bridge Group Co., Ltd | 8 |
1 |
| Other owners | 0 |