- Sections
- E - Constructions fixes
- E21D - Puits; tunnels; galeries; vastes chambres souterraines
- E21D 1/06 - Fonçage des puits mécanique au moyen d'appareils à inciser pour forer les puits
Détention brevets de la classe E21D 1/06
Brevets de cette classe: 41
Historique des publications depuis 10 ans
|
3
|
1
|
5
|
2
|
3
|
4
|
2
|
3
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Herrenknecht AG | 195 |
13 |
| China Railway Engineering Equipment Group Co., Ltd. | 41 |
5 |
| Master Sinkers (Pty) Ltd | 7 |
5 |
| Titan CMP Solutions LLC | 8 |
2 |
| University of Science and Technology Beijing | 271 |
2 |
| China Coal No.3 Construction Corporation (Group) Ltd | 2 |
2 |
| Hefei Design & Research Institute of Coal Industry Co., Ltd | 2 |
2 |
| Bauer Spezialtiefbau GmbH | 113 |
1 |
| The Charles Machine Works, Inc. | 415 |
1 |
| Hatch Ltd. | 215 |
1 |
| Master Drilling South Africa (Pty) Ltd. | 3 |
1 |
| Poclain Hydraulics Industrie | 234 |
1 |
| Technological Resources Pty. Limited | 443 |
1 |
| NK Trading and Engineering GmbH | 3 |
1 |
| Ansteel Group Mining Corporation Limited | 8 |
1 |
| Ansteel Group Mining Corportion Limited | 1 |
1 |
| China Railway Sunward Engineering Equipment Co., Ltd | 7 |
1 |
| Autres propriétaires | 0 |