- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 5/22 - Dredgers or soil-shifting machines for special purposes for making embankmentsDredgers or soil-shifting machines for special purposes for back-filling
Patent holdings for IPC class E02F 5/22
Total number of patents in this class: 51
10-year publication summary
|
3
|
8
|
7
|
9
|
18
|
9
|
5
|
5
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vermeer Manufacturing Company | 634 |
8 |
| Cciip LLC | 27 |
7 |
| Scaip S.p.A. | 31 |
5 |
| J&P Invesco LLC | 15 |
4 |
| Brown Bear Corporation | 8 |
2 |
| The Charles Machine Works, Inc. | 410 |
2 |
| Worldwide Machinery Ltd., ASG Management Corp., a Texas corporation | 10 |
2 |
| Delta Pipeline Machinery B.V. | 2 |
2 |
| Aqs Holdings Limited | 4 |
1 |
| Ecosse Subsea Systems Ltd | 6 |
1 |
| E.ON Sverige Aktiebolag | 87 |
1 |
| ESCO Corporation | 55 |
1 |
| Franz Plasser Bahnbaumaschinen-industriegesellschaft m.b.H. | 72 |
1 |
| H. Lotterman Beheer B.V. | 3 |
1 |
| Murphy Pipe & Civil IP Pty Ltd | 1 |
1 |
| Nordco Inc. | 98 |
1 |
| Rockland, Inc. | 14 |
1 |
| ThyssenKrupp AG | 3262 |
1 |
| ThyssenKrupp Industrial Solutions AG | 636 |
1 |
| Fluidized Rock Systems, Inc. | 2 |
1 |
| Other owners | 7 |