- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/28 - Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets
Patent holdings for IPC class E02F 3/28
Total number of patents in this class: 286
10-year publication summary
|
15
|
36
|
17
|
35
|
36
|
36
|
32
|
36
|
19
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4265 |
56 |
| Deere & Company | 6845 |
28 |
| Caterpillar Inc. | 8877 |
27 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
18 |
| Volvo Construction Equipment AB | 1172 |
11 |
| J.C. Bamford Excavators Limited | 398 |
9 |
| Guangxi Liugong Machinery Co., Ltd. | 54 |
7 |
| Blue Leaf I.P., Inc. | 2758 |
6 |
| Manitou BF | 126 |
6 |
| ESCO Group LLC | 321 |
6 |
| Doosan Bobcat North America Inc. | 508 |
6 |
| MineSense Technologies Ltd. | 58 |
5 |
| The Toro Company | 895 |
4 |
| Kubota Corporation | 3054 |
3 |
| Mitsubishi Logisnext Co., Ltd. | 116 |
3 |
| Shanghai Sany Heavy Machinery Co., Ltd | 44 |
3 |
| Kinematic ApS | 3 |
3 |
| ZF Friedrichshafen AG | 6820 |
2 |
| 0728862 B.C. Ltd. | 5 |
2 |
| Ålö AB | 108 |
2 |
| Other owners | 79 |