- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/38 - Cantilever beamsDipper-armsBucket-arms
Patent holdings for IPC class E02F 3/38
Total number of patents in this class: 353
10-year publication summary
|
20
|
24
|
31
|
23
|
37
|
30
|
21
|
25
|
31
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 9604 |
33 |
| Kubota Corporation | 3943 |
25 |
| Hitachi Construction Machinery Co., Ltd. | 2645 |
24 |
| Komatsu Ltd. | 4572 |
22 |
| Deere & Company | 7636 |
20 |
| Great Plains Manufacturing, Inc. | 243 |
18 |
| Kobelco Construction Machinery Co., Ltd. | 1146 |
17 |
| Joy Global Surface Mining Inc | 366 |
12 |
| Caterpillar Global Mining LLC | 203 |
10 |
| Doosan Bobcat North America Inc. | 579 |
10 |
| J.C. Bamford Excavators Limited | 409 |
6 |
| Putzmeister Engineering GmbH | 340 |
6 |
| Yanmar Power Technology Co., Ltd. | 580 |
6 |
| Caterpillar SARL | 478 |
5 |
| Volvo Construction Equipment AB | 1197 |
5 |
| Blue Leaf I.P., Inc. | 2800 |
4 |
| Challenge Implements Holdings Pty Limited | 12 |
4 |
| Guangxi Liugong Machinery Co., Ltd. | 55 |
4 |
| Liebherr-France SAS | 12 |
4 |
| Clark Equipment Company | 308 |
3 |
| Other owners | 115 |