- All sections
- E - Fixed constructions
- E01B - Permanent waypermanent-way toolsmachines for making railways of all kinds
- E01B 7/24 - Heating of switches
Patent holdings for IPC class E01B 7/24
Total number of patents in this class: 69
10-year publication summary
|
2
|
6
|
7
|
7
|
4
|
3
|
4
|
1
|
2
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Backer EHP Inc. | 33 |
9 |
| Triple-S GmbH | 10 |
7 |
| Ean Elektroschaltanlagen GmbH | 9 |
4 |
| Railway Equipment Company, Inc. | 40 |
4 |
| Norfolk Southern Corporation | 71 |
3 |
| Voestalpine BWG GmbH & Co. KG | 12 |
3 |
| Stegia AB | 4 |
3 |
| Hot Switch Heating Systems LLC | 5 |
3 |
| Siemens AG | 24033 |
2 |
| Balfour Beatty plc | 40 |
2 |
| Voestalpine VAE GmbH | 32 |
2 |
| PINTSCH Aben Geotherm GmbH | 2 |
2 |
| Backer ELC AG | 2 |
2 |
| Goldschmidt Thermit GmbH | 4 |
1 |
| Kkm AB | 2 |
1 |
| Korea National University of Transportation Industry-Academic Cooperation Foundation | 244 |
1 |
| MAHLE International GmbH | 2911 |
1 |
| M.C. Dean, Inc. | 5 |
1 |
| Schwihag AG | 25 |
1 |
| SwedeSafe Marketing AB | 1 |
1 |
| Other owners | 16 |