- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 9/18 - Counterweights
Patent holdings for IPC class E02F 9/18
Total number of patents in this class: 158
10-year publication summary
|
26
|
18
|
16
|
9
|
7
|
11
|
11
|
11
|
12
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4607 |
28 |
| Hitachi Construction Machinery Co., Ltd. | 2680 |
19 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 199 |
12 |
| Caterpillar SARL | 480 |
10 |
| Volvo Construction Equipment AB | 1203 |
9 |
| Caterpillar Inc. | 9673 |
6 |
| Deere & Company | 7688 |
5 |
| J.C. Bamford Excavators Limited | 413 |
5 |
| Kobelco Construction Machinery Co., Ltd. | 1159 |
5 |
| JNC Corporation | 1506 |
4 |
| Joy Global Surface Mining Inc | 367 |
4 |
| Takeuchi Mfg. Co., Ltd. | 68 |
3 |
| Toyota Industries Corporation | 1145 |
2 |
| Caterpillar Global Mining LLC | 202 |
2 |
| Digga Australia Pty. Ltd. | 21 |
2 |
| IHC Holland IE B.V. | 264 |
2 |
| Liebherr-Hydraulikbagger GmbH | 44 |
2 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
2 |
| Yanmar Co., Ltd. | 1390 |
2 |
| 8082464 Canada Inc. | 22 |
2 |
| Other owners | 32 |