- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/30 - 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
Patent holdings for IPC class E02F 3/30
Total number of patents in this class: 356
10-year publication summary
|
32
|
57
|
43
|
22
|
29
|
24
|
28
|
29
|
16
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Joy Global Surface Mining Inc | 362 |
110 |
| Caterpillar Global Mining LLC | 204 |
35 |
| Caterpillar Inc. | 9549 |
32 |
| Komatsu Ltd. | 4554 |
26 |
| Hitachi Construction Machinery Co., Ltd. | 2643 |
11 |
| Deere & Company | 7609 |
6 |
| Sumitomo Heavy Industries, Ltd. | 1929 |
6 |
| Hudson Bay Holding B.V. | 9 |
5 |
| Kobelco Construction Machinery Co., Ltd. | 1138 |
5 |
| Volvo Construction Equipment AB | 1192 |
5 |
| MineSense Technologies Ltd. | 61 |
4 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
4 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 196 |
4 |
| Flanders Electric Motor Service, LLC | 64 |
4 |
| Doosan Bobcat North America Inc. | 575 |
4 |
| J.C. Bamford Excavators Limited | 405 |
3 |
| Kubota Corporation | 3908 |
3 |
| Liebherr-Mining Equipment Colmar SAS | 58 |
3 |
| Mcquaid Engineering Ltd | 3 |
3 |
| Hudson I.P. B.V. | 5 |
3 |
| Other owners | 80 |