- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/08 - Guiding the machine
Patent holdings for IPC class E21C 35/08
Total number of patents in this class: 95
10-year publication summary
|
12
|
7
|
4
|
6
|
4
|
4
|
4
|
6
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Joy Global Underground Mining LLC | 346 |
22 |
| Sandvik Mining and Construction Oy | 894 |
8 |
| Epiroc Rock Drills Aktiebolag | 676 |
7 |
| Sandvik Intellectual Property AB | 1388 |
6 |
| Caterpillar Inc. | 10331 |
5 |
| Komatsu Ltd. | 4811 |
5 |
| The Mosaic Company | 234 |
4 |
| China University of Mining and Technology | 1317 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1650 |
3 |
| Underground Extraction Technologies Pty Ltd | 17 |
3 |
| Eickhoff Bergbautechnik GmbH | 6 |
2 |
| Infomobility S.r.l. | 2 |
2 |
| Joy MM Delaware, Inc. | 56 |
2 |
| Modular Mining Systems, Inc. | 92 |
2 |
| RAG Aktiengesellschaft | 29 |
2 |
| Wirtgen GmbH | 518 |
2 |
| Beijing Longruan Technologies Inc. | 15 |
2 |
| Optima Mining Systems Pty Ltd | 3 |
2 |
| Landmark Graphics Corporation | 1489 |
1 |
| Caterpillar Global Mining Europe GmbH | 85 |
1 |
| Other owners | 11 |