- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/32 - Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam working downwardly and towards the machine, e.g. with backhoes
Patent holdings for IPC class E02F 3/32
Total number of patents in this class: 803
10-year publication summary
|
50
|
114
|
155
|
113
|
82
|
101
|
96
|
79
|
44
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4265 |
142 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
130 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 182 |
54 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
45 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
38 |
| Caterpillar Inc. | 8877 |
32 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
32 |
| Sumitomo Construction Machinery Co., Ltd. | 175 |
31 |
| Deere & Company | 6845 |
23 |
| Kubota Corporation | 3054 |
23 |
| Doosan Bobcat North America Inc. | 508 |
18 |
| Volvo Construction Equipment AB | 1172 |
17 |
| Caterpillar SARL | 441 |
16 |
| Caterpillar Trimble Control Technologies LLC | 134 |
16 |
| Built Robotics Inc. | 83 |
12 |
| Yanmar Power Technology Co., Ltd. | 599 |
11 |
| J.C. Bamford Excavators Limited | 398 |
10 |
| Clark Equipment Company | 335 |
9 |
| Blue Leaf I.P., Inc. | 2758 |
7 |
| HD Hyundai Infracore Co., Ltd | 252 |
6 |
| Other owners | 131 |