- Sections
- E - Constructions fixes
- E21C - Exploitation des mines ou carrières
- E21C 35/04 - Dispositifs de sécurité
Détention brevets de la classe E21C 35/04
Brevets de cette classe: 40
Historique des publications depuis 10 ans
3
|
5
|
1
|
3
|
0
|
5
|
2
|
5
|
4
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Propriétaires principaux
Proprétaire |
Total
|
Cette classe
|
---|---|---|
Joy Global Surface Mining Inc | 356 |
6 |
Joy Global Underground Mining LLC | 331 |
6 |
Caterpillar Inc. | 8877 |
2 |
China University of Mining and Technology | 1189 |
2 |
Sandvik Intellectual Property AB | 1634 |
2 |
Limited Liability Company "corum Group" | 16 |
2 |
Caterpillar Global Mining Europe GmbH | 86 |
1 |
Anhui University of Science and Technology | 156 |
1 |
Caterpillar Global Mining Equipment LLC | 115 |
1 |
J.H. Fletcher & Co. | 82 |
1 |
Modular Mining Systems, Inc. | 84 |
1 |
Motion Metrics International Corp | 64 |
1 |
RAG Aktiengesellschaft | 33 |
1 |
Sandvik Mining and Construction G.m.b.H. | 85 |
1 |
Sandvik Mining and Construction Oy | 703 |
1 |
Shandong University of Science and Technology | 459 |
1 |
Tensar Corporation | 11 |
1 |
West Virginia University Board of Governors on Behalf of West Virginia University | 98 |
1 |
Arvus Tecnologia Ltda. | 3 |
1 |
Sany Heavy Equipment Co., Ltd. | 58 |
1 |
Autres propriétaires | 6 |