- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 41/26 - Methods of surface miningLayouts therefor
Patent holdings for IPC class E21C 41/26
Total number of patents in this class: 121
10-year publication summary
|
9
|
9
|
11
|
7
|
11
|
5
|
10
|
10
|
8
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Technological Resources Pty. Limited | 442 |
29 |
| Caterpillar Inc. | 10280 |
8 |
| Syncrude Canada Ltd. | 84 |
4 |
| Wirtgen GmbH | 519 |
4 |
| Opti-minez Pty Ltd | 7 |
4 |
| Komatsu Ltd. | 4751 |
3 |
| Emergent Mining Technologies Pty Ltd | 3 |
3 |
| Groundprobe Pty Ltd | 38 |
3 |
| FLSmidth A/S | 788 |
3 |
| Newcrest Mining Limited | 37 |
3 |
| Dow Global Technologies LLC | 10994 |
2 |
| Canadian Natural Resources Limited | 47 |
2 |
| CyPlus GmbH | 21 |
2 |
| Modular Mining Systems, Inc. | 92 |
2 |
| Plotlogic Pty Ltd | 23 |
2 |
| Tenax S.p.A. | 44 |
2 |
| Trimble Inc. | 654 |
2 |
| The University of Melbourne | 568 |
2 |
| Epiroc Rock Drills Aktiebolag | 668 |
2 |
| Orica International Pte Ltd | 200 |
2 |
| Other owners | 37 |