- Sections
- E - Constructions fixes
- E21D - Puits; tunnels; galeries; vastes chambres souterraines
- E21D 9/06 - Exécution en utilisant un bouclier de percement
Détention brevets de la classe E21D 9/06
Brevets de cette classe: 178
Historique des publications depuis 10 ans
|
9
|
7
|
12
|
14
|
5
|
15
|
16
|
17
|
17
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Herrenknecht AG | 186 |
15 |
| China Railway Engineering Equipment Group Co., Ltd. | 40 |
10 |
| China Railway 14th Bureau Group Co., Ltd. | 14 |
9 |
| MAPEI S.p.A. | 549 |
5 |
| China Railway Tunnel Group Co., Ltd | 24 |
5 |
| hyperTunnel IP Limited | 22 |
5 |
| Komatsu Ltd. | 4265 |
4 |
| Obayashi Corporation | 55 |
4 |
| China Railway Siyuan Survey and Design Group Co., Ltd. | 66 |
4 |
| State Key Laboratory of Shield Machine and Boring Technology | 16 |
4 |
| Bouygues Travaux Publics | 30 |
3 |
| The Robbins Company | 9 |
3 |
| Zhejiang University | 2619 |
3 |
| China University of Mining and Technology | 1189 |
2 |
| Geopier Foundation Company, Inc. | 149 |
2 |
| Hitachi Zosen Corporation | 609 |
2 |
| Kabuki Construction Co., Ltd. | 3 |
2 |
| Korea Institute of Construction Technology | 79 |
2 |
| Lamberti SpA | 258 |
2 |
| Ocean University of China | 174 |
2 |
| Autres propriétaires | 90 |