- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 9/24 - Safety devices
Patent holdings for IPC class E02F 9/24
Total number of patents in this class: 1025
10-year publication summary
|
44
|
42
|
66
|
77
|
91
|
121
|
114
|
135
|
121
|
43
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Construction Machinery Co., Ltd. | 2498 |
171 |
| Komatsu Ltd. | 4265 |
138 |
| Caterpillar Inc. | 8877 |
66 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
60 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
42 |
| Volvo Construction Equipment AB | 1172 |
36 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
31 |
| Deere & Company | 6845 |
29 |
| Sumitomo Construction Machinery Co., Ltd. | 175 |
28 |
| ESCO Group LLC | 321 |
25 |
| Doosan Infracore Co., Ltd. | 313 |
21 |
| Kubota Corporation | 3054 |
19 |
| Yanmar Co., Ltd. | 1479 |
16 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 182 |
16 |
| Yanmar Holdings Co., Ltd. | 380 |
15 |
| Caterpillar SARL | 441 |
14 |
| Joy Global Surface Mining Inc | 356 |
10 |
| HD Hyundai Infracore Co., Ltd | 252 |
9 |
| Blue Leaf I.P., Inc. | 2758 |
8 |
| Clark Equipment Company | 335 |
8 |
| Other owners | 263 |