- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/34 - Dredgers; Soil-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: 591
10-year publication summary
|
32
|
64
|
74
|
83
|
59
|
74
|
60
|
55
|
47
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kubota Corporation | 3054 |
92 |
| Deere & Company | 6845 |
62 |
| Komatsu Ltd. | 4265 |
51 |
| Caterpillar Inc. | 8877 |
46 |
| Doosan Bobcat North America Inc. | 508 |
39 |
| Clark Equipment Company | 335 |
32 |
| Blue Leaf I.P., Inc. | 2758 |
24 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
20 |
| Great Plains Manufacturing, Inc. | 199 |
16 |
| The Toro Company | 895 |
13 |
| Volvo Construction Equipment AB | 1172 |
12 |
| Caterpillar SARL | 441 |
10 |
| CNH Industrial America LLC | 1683 |
8 |
| Vermeer Manufacturing Company | 615 |
7 |
| Yanmar Power Technology Co., Ltd. | 599 |
6 |
| J.C. Bamford Excavators Limited | 398 |
5 |
| Joy Global Longview Operations LLC | 13 |
5 |
| MAC Company, LLC | 7 |
5 |
| Guangxi Liugong Machinery Co., Ltd. | 54 |
4 |
| Ålö AB | 108 |
3 |
| Other owners | 131 |