- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/42 - Drives for dippers, buckets, dipper-arms or bucket-arms
Patent holdings for IPC class E02F 3/42
Total number of patents in this class: 476
10-year publication summary
|
38
|
48
|
50
|
58
|
49
|
47
|
47
|
56
|
40
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2498 |
40 |
| Caterpillar Inc. | 8877 |
38 |
| Komatsu Ltd. | 4265 |
38 |
| Joy Global Surface Mining Inc | 356 |
31 |
| Kubota Corporation | 3054 |
30 |
| Deere & Company | 6845 |
24 |
| Volvo Construction Equipment AB | 1172 |
22 |
| Doosan Bobcat North America Inc. | 508 |
21 |
| Caterpillar Global Mining LLC | 199 |
12 |
| Great Plains Manufacturing, Inc. | 199 |
11 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
10 |
| Kawasaki Heavy Industries, Limited | 1524 |
9 |
| Guangxi Liugong Machinery Co., Ltd. | 54 |
9 |
| The Toro Company | 895 |
8 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
7 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
7 |
| Blue Leaf I.P., Inc. | 2758 |
6 |
| Nabtesco Corporation | 871 |
6 |
| Clark Equipment Company | 335 |
5 |
| Oshkosh Corporation | 1006 |
5 |
| Other owners | 137 |