- 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: 355
10-year publication summary
|
24
|
31
|
23
|
37
|
30
|
21
|
26
|
31
|
26
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 9920 |
33 |
| Kubota Corporation | 4132 |
25 |
| Hitachi Construction Machinery Co., Ltd. | 2679 |
24 |
| Komatsu Ltd. | 4634 |
22 |
| Deere & Company | 7840 |
20 |
| Great Plains Manufacturing, Inc. | 249 |
19 |
| Kobelco Construction Machinery Co., Ltd. | 1169 |
15 |
| Joy Global Surface Mining Inc | 371 |
12 |
| Doosan Bobcat North America Inc. | 603 |
12 |
| Caterpillar Global Mining LLC | 204 |
10 |
| J.C. Bamford Excavators Limited | 423 |
6 |
| Putzmeister Engineering GmbH | 350 |
6 |
| Yanmar Power Technology Co., Ltd. | 580 |
6 |
| Caterpillar SARL | 481 |
5 |
| Volvo Construction Equipment AB | 1208 |
5 |
| Blue Leaf I.P., Inc. | 2780 |
4 |
| Challenge Implements Holdings Pty Limited | 12 |
4 |
| Guangxi Liugong Machinery Co., Ltd. | 55 |
4 |
| Liebherr-France SAS | 12 |
4 |
| Jiangsu XCMG Construction Machinery Research Institute Ltd. | 199 |
4 |
| Other owners | 115 |