- 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: 5551
10-year publication summary
|
390
|
383
|
412
|
445
|
520
|
510
|
562
|
505
|
434
|
241
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4505 |
921 |
| Hitachi Construction Machinery Co., Ltd. | 2620 |
732 |
| Caterpillar Inc. | 9449 |
530 |
| Kobelco Construction Machinery Co., Ltd. | 1133 |
288 |
| Deere & Company | 7495 |
226 |
| Volvo Construction Equipment AB | 1185 |
202 |
| Sumitomo Heavy Industries, Ltd. | 1867 |
180 |
| Kubota Corporation | 3718 |
167 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
103 |
| Sumitomo Construction Machinery Co., Ltd. | 199 |
92 |
| Doosan Bobcat North America Inc. | 566 |
89 |
| Joy Global Surface Mining Inc | 362 |
77 |
| Doosan Infracore Co., Ltd. | 309 |
72 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 195 |
63 |
| Caterpillar SARL | 477 |
56 |
| Clark Equipment Company | 306 |
53 |
| HD Hyundai Infracore Co., Ltd | 272 |
53 |
| Blue Leaf I.P., Inc. | 2824 |
52 |
| Yanmar Holdings Co., Ltd. | 483 |
40 |
| ZF Friedrichshafen AG | 7119 |
37 |
| Other owners | 1518 |