- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 9/20 - DrivesControl devices
Patent holdings for IPC class E02F 9/20
Total number of patents in this class: 5806
10-year publication summary
|
373
|
365
|
391
|
422
|
488
|
482
|
545
|
473
|
433
|
479
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4611 |
963 |
| Hitachi Construction Machinery Co., Ltd. | 2680 |
753 |
| Caterpillar Inc. | 9687 |
551 |
| Kobelco Construction Machinery Co., Ltd. | 1158 |
303 |
| Deere & Company | 7709 |
235 |
| Volvo Construction Equipment AB | 1204 |
208 |
| Sumitomo Heavy Industries, Ltd. | 1962 |
190 |
| Kubota Corporation | 4036 |
180 |
| Doosan Bobcat North America Inc. | 590 |
104 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
103 |
| Sumitomo Construction Machinery Co., Ltd. | 226 |
101 |
| Joy Global Surface Mining Inc | 367 |
77 |
| Doosan Infracore Co., Ltd. | 309 |
72 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 199 |
63 |
| HD Hyundai Infracore Co., Ltd | 284 |
59 |
| Caterpillar SARL | 480 |
55 |
| Clark Equipment Company | 308 |
55 |
| Blue Leaf I.P., Inc. | 2789 |
52 |
| Yanmar Holdings Co., Ltd. | 541 |
49 |
| ZF Friedrichshafen AG | 7177 |
42 |
| Other owners | 1591 |