- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 25/52 - Machines incorporating two or more of the slitting means according to groups , , , and
Patent holdings for IPC class E21C 25/52
Total number of patents in this class: 5
10-year publication summary
2
|
3
|
1
|
1
|
2
|
0
|
1
|
0
|
0
|
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 |
2 |
China University of Mining and Technology | 1189 |
1 |
Eickhoff Bergbautechnik GmbH | 6 |
1 |
Gainwell Engineering Global Pte. Ltd. | 12 |
1 |
Other owners | 0 |