- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 5/20 - Machines for digging other holes in the soil for vertical holes
Patent holdings for IPC class E02F 5/20
Total number of patents in this class: 36
10-year publication summary
|
4
|
10
|
4
|
6
|
4
|
2
|
2
|
3
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Joy Global Underground Mining LLC | 347 |
5 |
| Halliburton Energy Services, Inc. | 20788 |
3 |
| Ingios Geotechnics, Inc. | 14 |
3 |
| Utilicor Technologies Inc. | 9 |
3 |
| Baker Hughes Incorporated | 5279 |
2 |
| Quanta Associates, L.P. | 430 |
2 |
| Egun Co., Ltd. | 40 |
2 |
| Caterpillar Inc. | 9521 |
1 |
| The Ames Companies, Inc. | 270 |
1 |
| Ardisam, Inc. | 75 |
1 |
| Digga Australia Pty. Ltd. | 21 |
1 |
| Korea Institute of Industrial Technology | 1011 |
1 |
| Liebherr-Werk Nenzing GmbH | 92 |
1 |
| Soilmec S.p.A. | 75 |
1 |
| Soletanche Freyssinet | 477 |
1 |
| Vale S.A. | 270 |
1 |
| Precise Drilling Components Ltd. | 8 |
1 |
| Chief Enterprises Pty Ltd | 1 |
1 |
| Haian Petroleum Scientific Research Instrument Co., Ltd. | 5 |
1 |
| Ocean Technologies Limited | 3 |
1 |
| Other owners | 3 |