- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 9/12 - Slewing or traversing gears
Patent holdings for IPC class E02F 9/12
Total number of patents in this class: 452
10-year publication summary
|
59
|
58
|
42
|
34
|
19
|
34
|
34
|
39
|
24
|
7
|
| 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 |
68 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
43 |
| Volvo Construction Equipment AB | 1172 |
43 |
| Komatsu Ltd. | 4265 |
29 |
| Caterpillar Inc. | 8877 |
25 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
21 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
17 |
| Doosan Infracore Co., Ltd. | 313 |
12 |
| Kawasaki Heavy Industries, Limited | 1524 |
11 |
| HD Hyundai Infracore Co., Ltd | 252 |
11 |
| Caterpillar Global Mining LLC | 199 |
8 |
| Kubota Corporation | 3054 |
8 |
| Doosan Bobcat North America Inc. | 508 |
8 |
| Caterpillar SARL | 441 |
7 |
| Parker Intangibles LLC | 1237 |
7 |
| Clark Equipment Company | 335 |
6 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 182 |
6 |
| Deere & Company | 6845 |
5 |
| Kobe Steel, Ltd. | 912 |
4 |
| Parker-Hannifin Corporation | 999 |
4 |
| Other owners | 109 |