- 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
|
3
|
2
|
0
|
0
|
3
|
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 | 178 |
2 |
| Kureha Corporation | 1040 |
2 |
| Newcrest Mining Limited | 38 |
2 |
| ABB Schweiz AG | 7240 |
1 |
| China University of Mining and Technology | 1277 |
1 |
| Emstone AB | 4 |
1 |
| Tohoku University | 2855 |
1 |
| Xuzhou Zhirun Mining Equipment Science and Technology Co., Ltd. | 31 |
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 Investmenst Ltd | 1 |
1 |
| Other owners | 0 |