- All sections
- E - Fixed constructions
- E21D - Shaftstunnelsgallerieslarge underground chambers
- E21D 11/05 - Lining with building materials using compressible insertions
Patent holdings for IPC class E21D 11/05
Total number of patents in this class: 20
10-year publication summary
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1
|
1
|
2
|
3
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0
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0
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0
|
1
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2
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agence Nationale pour La Gestion des Dechets Radioactifs | 51 |
4 |
| Constructions Mecaniques Consultants | 6 |
4 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 326 |
2 |
| Vertex, Inc. | 53 |
2 |
| Bochumer Eisenhütte Heintzmann GmbH & Co. KG | 12 |
1 |
| CSI Tunnel Systems | 2 |
1 |
| Hyperloop Technologies, Inc. | 180 |
1 |
| Assistance et Conseil Industriel | 1 |
1 |
| John Oldroyd Cheetham | 4 |
1 |
| Solexperts AG. | 11 |
1 |
| Hangzhou City University | 69 |
1 |
| Technicore Underground Inc. | 8 |
1 |
| Other owners | 0 |