- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/20 - DredgersSoil-shifting machines mechanically-driven with digging wheels turning round an axis with tools that only loosen the material
Patent holdings for IPC class E02F 3/20
Total number of patents in this class: 133
10-year publication summary
|
4
|
5
|
8
|
8
|
12
|
9
|
19
|
13
|
11
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bauer Maschinen GmbH | 228 |
28 |
| Soletanche Freyssinet | 481 |
20 |
| Bauer Spezialtiefbau GmbH | 115 |
7 |
| Liebherr-components Biberach GmbH | 225 |
7 |
| Soilmec S.p.A. | 74 |
7 |
| Liebherr-Werk Nenzing GmbH | 94 |
4 |
| Meccanica Breganzese S.p.A. in Breve MB S.p.A. | 35 |
4 |
| Vermeer Manufacturing Company | 649 |
4 |
| L & B Manufacturing, Inc. | 27 |
3 |
| Nautilus Minerals Pacific Pty Ltd | 26 |
3 |
| Galloway Steel Fabrications Limited | 3 |
3 |
| Ccmj Systems Ltd | 10 |
2 |
| Compagnie du Sol | 10 |
2 |
| Element Six Abrasives S.A. | 147 |
2 |
| Element Six GmbH | 108 |
2 |
| Simex, S.r.l. | 20 |
2 |
| VSL International AG | 89 |
2 |
| Wirtgen GmbH | 511 |
2 |
| Grotti S.r.l. | 10 |
2 |
| Norman BV | 3 |
2 |
| Other owners | 25 |