- Sections
- E - Constructions fixes
- E21D - Puitstunnelsgaleriesvastes chambres souterraines
- E21D 9/093 - Commande du bouclier de percement
Détention brevets de la classe E21D 9/093
Brevets de cette classe: 45
Historique des publications depuis 10 ans
|
1
|
2
|
0
|
3
|
3
|
5
|
2
|
3
|
14
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| China Railway Engineering Equipment Group Co., Ltd. | 47 |
4 |
| Arcbyt, Inc. | 14 |
3 |
| CCCC National Engineering Research Center of Dredging Technology and Equipment Co., Ltd. | 29 |
3 |
| Hitachi Zosen Corporation | 613 |
2 |
| Shandong University | 1104 |
2 |
| Zhejiang University | 3339 |
2 |
| China Railway 14th Bureau Group Co., Ltd. | 14 |
2 |
| China Railway Siyuan Survey and Design Group Co., Ltd. | 69 |
2 |
| Daido Corporation | 2 |
2 |
| Caterpillar Inc. | 10027 |
1 |
| Central South University | 468 |
1 |
| China University of Mining and Technology | 1287 |
1 |
| Herrenknecht AG | 210 |
1 |
| Shenzhen University | 1688 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3162 |
1 |
| China Railway Tunneling Equipment Co., Ltd. | 3 |
1 |
| Jamal Rostami Engineering Services LLC | 4 |
1 |
| TopEng Inc. | 5 |
1 |
| Zhejiang University City College | 50 |
1 |
| Chujin Technology Co., Ltd. | 1 |
1 |
| Autres propriétaires | 12 |