- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/34 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with bucket-arms directly pivoted on the frames of tractors or self-propelled machines
Patent holdings for IPC class E02F 3/34
Total number of patents in this class: 665
10-year publication summary
|
62
|
73
|
79
|
56
|
68
|
57
|
49
|
51
|
51
|
34
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kubota Corporation | 3983 |
103 |
| Deere & Company | 7660 |
71 |
| Komatsu Ltd. | 4576 |
53 |
| Doosan Bobcat North America Inc. | 585 |
52 |
| Caterpillar Inc. | 9647 |
50 |
| Great Plains Manufacturing, Inc. | 243 |
34 |
| Clark Equipment Company | 308 |
31 |
| Blue Leaf I.P., Inc. | 2796 |
25 |
| Hitachi Construction Machinery Co., Ltd. | 2650 |
20 |
| The Toro Company | 972 |
16 |
| Caterpillar SARL | 478 |
12 |
| Volvo Construction Equipment AB | 1198 |
12 |
| Vermeer Manufacturing Company | 640 |
10 |
| CNH Industrial America LLC | 1890 |
8 |
| J.C. Bamford Excavators Limited | 409 |
6 |
| Yanmar Power Technology Co., Ltd. | 580 |
6 |
| Joy Global Longview Operations LLC | 13 |
5 |
| Sandvik Mining and Construction Oy | 839 |
4 |
| Takeuchi Mfg. Co., Ltd. | 61 |
4 |
| Rockford Rigging, Inc. | 4 |
4 |
| Other owners | 139 |