- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/04 - Dredgers; Soil-shifting machines mechanically-driven
Patent holdings for IPC class E02F 3/04
Total number of patents in this class: 55
10-year publication summary
|
4
|
4
|
4
|
6
|
4
|
7
|
5
|
9
|
4
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 8877 |
5 |
| Deere & Company | 6845 |
3 |
| Sany Heavy Machinery Limited | 55 |
3 |
| Blue Leaf I.P., Inc. | 2758 |
2 |
| Austin Engineering Ltd. | 34 |
2 |
| Deep Reach Technology, Inc. | 12 |
2 |
| TAPCO, Inc. | 10 |
2 |
| Cashman Dredging and Marine Contracting, Co., LLC | 40 |
2 |
| Rockford Rigging, Inc. | 2 |
2 |
| Jiangsu XCMG Construction Machinery Research Institute Ltd. | 111 |
2 |
| Xuzhou XCMG Excavator Machinery Co., Ltd | 19 |
2 |
| Massachusetts Institute of Technology | 9795 |
1 |
| Tsinghua University | 5426 |
1 |
| Komatsu Ltd. | 4265 |
1 |
| Trimble Navigation Limited | 701 |
1 |
| Caterpillar Paving Products Inc. | 628 |
1 |
| Joy MM Delaware, Inc. | 58 |
1 |
| Manitou Italia S.r.l. | 74 |
1 |
| Montabert | 64 |
1 |
| Rodradar Ltd. | 21 |
1 |
| Other owners | 19 |