- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 9/54 - Rail chairs
Patent holdings for IPC class E01B 9/54
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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2
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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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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 |
| BWG GmbH & Co. KG | 12 |
1 |
| Delkor Rail Pty. Ltd. | 2 |
1 |
| L.B. Foster Company | 53 |
1 |
| Pandrol Limited | 94 |
1 |
| VAE Eisenbahnsysteme GmbH | 16 |
1 |
| VAE GmbH | 29 |
1 |
| Other owners | 0 |