- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 27/24 - Mineral freed by means not involving slitting by milling means acting on the full working face
Patent holdings for IPC class E21C 27/24
Total number of patents in this class: 142
10-year publication summary
11
|
30
|
24
|
22
|
11
|
8
|
7
|
5
|
6
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sandvik Intellectual Property AB | 1634 |
30 |
Joy Global Underground Mining LLC | 331 |
22 |
Sandvik Mining and Construction G.m.b.H. | 85 |
15 |
Caterpillar Global Mining Europe GmbH | 86 |
11 |
Wirtgen GmbH | 507 |
5 |
Aktsionernoe Obshchestvo «kopeiskii Mashinostroitelnyi Zavod | 5 |
5 |
Joy MM Delaware, Inc. | 58 |
4 |
Vermeer Manufacturing Company | 615 |
4 |
Caterpillar Inc. | 8877 |
3 |
Foro Energy, Inc. | 104 |
3 |
Underground Extraction Technologies Pty Ltd | 17 |
3 |
Epiroc Aktiebolag | 30 |
3 |
BOMAG GmbH | 405 |
2 |
The Sollami Company | 51 |
2 |
Eagle Highwall Mining Systems, LLC | 11 |
2 |
African Rainbow Minerals Platinum (Pty) Ltd. | 2 |
2 |
Ford Global Technologies, LLC | 19702 |
1 |
9dot Solutions (Pty) Ltd | 2 |
1 |
Alliance Coal, LLC | 7 |
1 |
Atlas Copco Craelius AB | 17 |
1 |
Other owners | 22 |