- 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 |