- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/78 - Graders, bulldozers, or the like with scraper plates or ploughshare-like elementsLevelling devices with rotating digging elements
Patent holdings for IPC class E02F 3/78
Total number of patents in this class: 31
10-year publication summary
|
1
|
3
|
2
|
2
|
4
|
0
|
1
|
1
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Doosan Bobcat North America Inc. | 650 |
4 |
| Vermeer Manufacturing Company | 671 |
3 |
| Wirtgen America, Inc. | 24 |
3 |
| Caterpillar Paving Products Inc. | 724 |
2 |
| H. Lotterman Beheer B.V. | 3 |
2 |
| Venture Products, Inc. | 41 |
2 |
| SC Grade, LLC | 3 |
2 |
| Burchland Mfg. Inc. | 2 |
2 |
| Blue Leaf I.P., Inc. | 2932 |
1 |
| BOMAG GmbH | 394 |
1 |
| Coneqtec Corp. | 12 |
1 |
| G2 Turftools, Inc. | 29 |
1 |
| GMS Mine Repair and Maintenance, Inc. | 4 |
1 |
| Nautilus Minerals Pacific Pty Ltd | 23 |
1 |
| Soil Machine Dynamics Limited | 27 |
1 |
| The Sollami Company | 59 |
1 |
| Vermeer Corporation | 10 |
1 |
| Elmer's Welding & Manufacturing Ltd. | 26 |
1 |
| Burchland Manufacturing, Inc. | 1 |
1 |
| Other owners | 0 |