- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 21/04 - Special fastenings, joint constructions, or tie-rods
Patent holdings for IPC class E01B 21/04
Total number of patents in this class: 7
10-year publication summary
0
|
0
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1
|
0
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0
|
0
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0
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2
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Progress Rail Services Corp | 225 |
1 |
EV IP LP | 18 |
1 |
Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 385 |
1 |
Vossloh-Werke GmbH | 96 |
1 |
edilon sedra GmbH | 8 |
1 |
Carpet Track Ltd | 2 |
1 |
China Railway Shanhaiguan Bridge Group Corporation Limited | 5 |
1 |
Other owners | 0 |