- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/32 - DredgersSoil-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: 1013
10-year publication summary
|
155
|
113
|
83
|
103
|
103
|
105
|
57
|
53
|
84
|
49
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4741 |
166 |
| Hitachi Construction Machinery Co., Ltd. | 2758 |
150 |
| Sumitomo Heavy Industries, Ltd. | 2117 |
65 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 208 |
58 |
| Sumitomo Construction Machinery Co., Ltd. | 242 |
51 |
| Caterpillar Inc. | 10285 |
49 |
| Kobelco Construction Machinery Co., Ltd. | 1211 |
48 |
| Kubota Corporation | 4403 |
43 |
| Deere & Company | 8127 |
35 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
32 |
| Caterpillar SARL | 486 |
22 |
| Volvo Construction Equipment AB | 1221 |
22 |
| Doosan Bobcat North America Inc. | 651 |
21 |
| Caterpillar Trimble Control Technologies LLC | 130 |
15 |
| Yanmar Holdings Co., Ltd. | 613 |
15 |
| J.C. Bamford Excavators Limited | 447 |
13 |
| Built Robotics Inc. | 96 |
12 |
| Yanmar Power Technology Co., Ltd. | 580 |
11 |
| Clark Equipment Company | 289 |
9 |
| Blue Leaf I.P., Inc. | 2931 |
8 |
| Other owners | 168 |