- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/815 - BladesLevelling tools
Patent holdings for IPC class E02F 3/815
Total number of patents in this class: 415
10-year publication summary
|
35
|
59
|
68
|
43
|
42
|
33
|
41
|
21
|
29
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10375 |
156 |
| Deere & Company | 8258 |
23 |
| Komatsu Ltd. | 4835 |
23 |
| Winter Equipment Company | 28 |
10 |
| Progressive IP Limited | 26 |
8 |
| ESCO Group LLC | 312 |
7 |
| ABI Attachments, Inc. | 48 |
5 |
| R2 Manufacturing LLC | 13 |
5 |
| Bourgault Machines Inc. | 24 |
5 |
| Hitachi Construction Machinery Co., Ltd. | 2815 |
4 |
| Blue Leaf I.P., Inc. | 2928 |
4 |
| 9277-9347 Quebec Inc. | 11 |
4 |
| Volvo Construction Equipment AB | 1224 |
4 |
| 9407-4895 Quebec Inc. | 13 |
4 |
| 1708828 Ontario Limited | 14 |
3 |
| Clark Equipment Company | 285 |
3 |
| Metalogenia Research & Technologies S.L. | 118 |
3 |
| Pro-Tech Manufacturing and Distribution, Inc. | 17 |
3 |
| Sandvik Intellectual Property AB | 1384 |
3 |
| Soucy International Inc. | 388 |
3 |
| Other owners | 135 |