- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 9/04 - Walking gears moving the dredger forward step-by-step
Patent holdings for IPC class E02F 9/04
Total number of patents in this class: 9
10-year publication summary
|
3
|
0
|
1
|
0
|
0
|
0
|
1
|
0
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Global Mining LLC | 208 |
2 |
| Caterpillar Inc. | 10280 |
1 |
| Komatsu Ltd. | 4751 |
1 |
| Caterpillar Japan Ltd. | 34 |
1 |
| Entro Industries, Inc. | 43 |
1 |
| Warfab Industries, Inc. | 1 |
1 |
| Yeti Developments B.V | 1 |
1 |
| CRRC Smd (Shanghai), Ltd. | 13 |
1 |
| Other owners | 0 |