- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/39 - Cantilever beamsDipper-armsBucket-arms with telescopic arms
Patent holdings for IPC class E02F 3/39
Total number of patents in this class: 5
10-year publication summary
|
0
|
3
|
0
|
0
|
0
|
0
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2696 |
3 |
| Blue Leaf I.P., Inc. | 2765 |
1 |
| Parker-Hannifin Corporation | 1023 |
1 |
| Other owners | 0 |