- 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: 165
10-year publication summary
|
18
|
16
|
9
|
7
|
12
|
12
|
12
|
13
|
13
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Komatsu Ltd. | 4703 |
30 |
| Hitachi Construction Machinery Co., Ltd. | 2749 |
19 |
| Hitachi Construction Machinery Tierra Co., Ltd. | 205 |
12 |
| Caterpillar SARL | 486 |
11 |
| Volvo Construction Equipment AB | 1223 |
9 |
| Caterpillar Inc. | 10272 |
7 |
| Kobelco Construction Machinery Co., Ltd. | 1207 |
6 |
| Deere & Company | 8080 |
5 |
| J.C. Bamford Excavators Limited | 446 |
5 |
| JNC Corporation | 1548 |
4 |
| Joy Global Surface Mining Inc | 372 |
4 |
| Toyota Industries Corporation | 1209 |
2 |
| Caterpillar Global Mining LLC | 207 |
2 |
| IHC Holland IE B.V. | 260 |
2 |
| Kubota Corporation | 4388 |
2 |
| Liebherr-Hydraulikbagger GmbH | 45 |
2 |
| Sumitomo(s.h.i.) Construction Machinery Co., Ltd. | 243 |
2 |
| Takeuchi Mfg. Co., Ltd. | 63 |
2 |
| 8082464 Canada Inc. | 15 |
2 |
| Manitou Equipment America, LLC | 37 |
2 |
| Other owners | 35 |