- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 9/24 - Safety devices
Patent holdings for IPC class E02F 9/24
Total number of patents in this class: 1141
10-year publication summary
|
42
|
65
|
77
|
91
|
119
|
113
|
136
|
123
|
123
|
70
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2643 |
188 |
| Komatsu Ltd. | 4556 |
160 |
| Caterpillar Inc. | 9558 |
82 |
| Kobelco Construction Machinery Co., Ltd. | 1140 |
67 |
| Sumitomo Heavy Industries, Ltd. | 1929 |
50 |
| Volvo Construction Equipment AB | 1192 |
43 |
| Sumitomo Construction Machinery Co., Ltd. | 210 |
35 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
31 |
| Deere & Company | 7619 |
29 |
| Kubota Corporation | 3912 |
24 |
| ESCO Group LLC | 315 |
23 |
| Doosan Infracore Co., Ltd. | 309 |
21 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 196 |
19 |
| Yanmar Holdings Co., Ltd. | 500 |
18 |
| Caterpillar SARL | 477 |
15 |
| Yanmar Co., Ltd. | 1404 |
13 |
| Joy Global Surface Mining Inc | 362 |
11 |
| HD Hyundai Infracore Co., Ltd | 280 |
11 |
| NEC Corporation | 35734 |
8 |
| Blue Leaf I.P., Inc. | 2806 |
8 |
| Other owners | 285 |