- All sections
- E - Fixed constructions
- E02F - Dredging; soil-shifting
- E02F 9/18 - Counterweights
Patent holdings for IPC class E02F 9/18
Total number of patents in this class: 141
10-year publication summary
|
19
|
26
|
18
|
16
|
9
|
7
|
12
|
11
|
10
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4265 |
26 |
| Hitachi Construction Machinery Co., Ltd. | 2498 |
16 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 182 |
11 |
| Caterpillar SARL | 441 |
10 |
| Volvo Construction Equipment AB | 1172 |
9 |
| Caterpillar Inc. | 8877 |
5 |
| J.C. Bamford Excavators Limited | 398 |
5 |
| Kobelco Construction Machinery Co., Ltd. | 1048 |
5 |
| Deere & Company | 6845 |
4 |
| Joy Global Surface Mining Inc | 356 |
4 |
| Toyota Industries Corporation | 1010 |
2 |
| Caterpillar Global Mining LLC | 199 |
2 |
| Digga Australia Pty. Ltd. | 21 |
2 |
| IHC Holland IE B.V. | 277 |
2 |
| JNC Corporation | 1527 |
2 |
| Liebherr-Hydraulikbagger GmbH | 49 |
2 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 245 |
2 |
| Yanmar Co., Ltd. | 1479 |
2 |
| Hudson I.P. B.V. | 5 |
2 |
| Honda Motor Co., Ltd. | 24537 |
1 |
| Other owners | 27 |