- All sections
- E - Fixed constructions
- E01B - Permanent waypermanent-way toolsmachines for making railways of all kinds
- E01B 3/20 - Sleeper construction for special purposes, e.g. with openings for ballast working
Patent holdings for IPC class E01B 3/20
Total number of patents in this class: 7
10-year publication summary
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0
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0
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0
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0
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0
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1
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1
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0
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1
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Enerpac Tool Group Corp. | 130 |
2 |
| ANSALDO STS S.p.A. | 21 |
1 |
| Konecranes Global Corporation | 483 |
1 |
| Union Pacific Railroad Company | 62 |
1 |
| Sigassure UK Limited | 1 |
1 |
| Voestalpine Signaling Zeltweg GmbH | 2 |
1 |
| Other owners | 0 |