Patent holdings for IPC class E21C 27/12

Total number of patents in this class: 30

10-year publication summary

3
3
9
6
1
2
2
0
1
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Joy Global Underground Mining LLC
346
10
Sandvik Intellectual Property AB
1542
6
Furukawa Rock Drill Co., Ltd.
35
3
Sandvik Mining and Construction G.m.b.H.
88
3
Element Six (UK) Limited
203
3
Atlas Copco Craelius AB
14
1
CMTE Development Limited
42
1
Joy MM Delaware, Inc.
57
1
Epiroc Aktiebolag
29
1
Gainwell Engineering Global Pte. Ltd.
12
1
Other owners 0