- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 3/815 - Blades; Levelling tools
Patent holdings for IPC class E02F 3/815
Total number of patents in this class: 370
10-year publication summary
|
29
|
46
|
35
|
59
|
68
|
43
|
40
|
31
|
33
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 8877 |
133 |
| Komatsu Ltd. | 4265 |
25 |
| Deere & Company | 6845 |
15 |
| Winter Equipment Company | 25 |
7 |
| ESCO Group LLC | 321 |
7 |
| Progressive IP Limited | 20 |
6 |
| ABI Attachments, Inc. | 39 |
5 |
| R2 Manufacturing LLC | 12 |
5 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
4 |
| Blue Leaf I.P., Inc. | 2758 |
4 |
| 9277-9347 Quebec Inc. | 11 |
4 |
| 1708828 Ontario Limited | 14 |
3 |
| Clark Equipment Company | 335 |
3 |
| Metalogenia Research & Technologies S.L. | 90 |
3 |
| Nordco Inc. | 104 |
3 |
| Pro-Tech Manufacturing and Distribution, Inc. | 17 |
3 |
| Sandvik Intellectual Property AB | 1634 |
3 |
| Soucy International Inc. | 282 |
3 |
| Vermeer Manufacturing Company | 615 |
3 |
| Volvo Construction Equipment AB | 1172 |
3 |
| Other owners | 128 |