- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 45/04 - Means for generating pulsating fluid jets by use of highly pressurised liquid
Patent holdings for IPC class E21C 45/04
Total number of patents in this class: 14
10-year publication summary
|
1
|
0
|
3
|
2
|
0
|
0
|
2
|
0
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| China University of Mining and Technology | 1275 |
5 |
| Geodrilling Technologies, Inc. | 2 |
2 |
| Xuzhou Usure Mining Technology Co., Ltd | 15 |
2 |
| Newcrest Mining Limited | 38 |
2 |
| Gtherm Energy, Inc. | 14 |
1 |
| Russell Mineral Equipment Pty Ltd | 72 |
1 |
| Georock S.A. | 1 |
1 |
| Other owners | 0 |