- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 37/04 - Other methods or devices for dislodging with or without loading by devices with parts pressed mechanically against the wall of a borehole
Patent holdings for IPC class E21C 37/04
Total number of patents in this class: 5
10-year publication summary
|
1
|
2
|
1
|
2
|
0
|
1
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Csir | 184 |
1 |
| Forta Corporation | 8 |
1 |
| Hypersciences, Inc. | 42 |
1 |
| Element Six (UK) Limited | 218 |
1 |
| DARDA GmbH | 1 |
1 |
| Other owners | 0 |