- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 1/30 - Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
Patent holdings for IPC class E21B 1/30
Total number of patents in this class: 26
10-year publication summary
|
1
|
0
|
0
|
1
|
1
|
3
|
7
|
1
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rig Technologies International Pty Ltd | 15 |
6 |
| Caterpillar Inc. | 9521 |
3 |
| Mincon International Limited | 53 |
3 |
| Drillroc Pneumatic Pty Ltd | 6 |
2 |
| Everdigm Rock Tools Corp. | 3 |
2 |
| Chang Sin International Co., Ltd | 1 |
1 |
| Dalian University of Technology | 1511 |
1 |
| HANJIN D & B Co., Ltd. | 5 |
1 |
| Pneuma-tool Canada Inc. | 2 |
1 |
| Sandvik Intellectual Property AB | 1490 |
1 |
| Mincon Nordic Oy | 14 |
1 |
| Epiroc Rock Drills Aktiebolag | 512 |
1 |
| e & P Eng | 1 |
1 |
| LG Energy Solution, Ltd. | 14693 |
1 |
| Sulzer (South Africa) Holdings (Pty) Ltd | 2 |
1 |
| Other owners | 0 |