- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 37/06 - Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
Patent holdings for IPC class E21C 37/06
Total number of patents in this class: 20
10-year publication summary
|
2
|
5
|
2
|
0
|
0
|
5
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Youngin Industrial Company Limited | 4 |
3 |
| Korea Railroad Research Institute | 185 |
2 |
| Kureha Corporation | 1069 |
2 |
| Newcrest Mining Limited | 37 |
2 |
| ABB Schweiz AG | 7665 |
1 |
| China University of Mining and Technology | 1315 |
1 |
| Emstone AB | 3 |
1 |
| Tohoku University | 3007 |
1 |
| Xuzhou Zhirun Mining Equipment Science and Technology Co., Ltd. | 29 |
1 |
| Gnr Co., Ltd. | 1 |
1 |
| Gunwoo Tech Co.,Ltd. | 1 |
1 |
| Kotm Co., Ltd. | 1 |
1 |
| CFI Technologies, LLC | 2 |
1 |
| Georock S.A. | 1 |
1 |
| Ivv Investments Ltd | 1 |
1 |
| Other owners | 0 |