- 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: 93
10-year publication summary
|
11
|
11
|
6
|
2
|
4
|
3
|
4
|
2
|
4
|
3
|
| 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 | 347 |
22 |
| Sandvik Mining and Construction Oy | 836 |
8 |
| Komatsu Ltd. | 4572 |
7 |
| Sandvik Intellectual Property AB | 1476 |
6 |
| Caterpillar Inc. | 9604 |
5 |
| The Mosaic Company | 213 |
4 |
| Epiroc Rock Drills Aktiebolag | 527 |
4 |
| China University of Mining and Technology | 1260 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1660 |
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 |
| RAG Aktiengesellschaft | 31 |
2 |
| Wirtgen GmbH | 499 |
2 |
| Beijing Longruan Technologies Inc. | 10 |
2 |
| Optima Mining Systems Pty Ltd | 3 |
2 |
| Landmark Graphics Corporation | 1524 |
1 |
| Caterpillar Global Mining Europe GmbH | 85 |
1 |
| The Goodyear Tire & Rubber Company | 2487 |
1 |
| Other owners | 11 |