- All sections
- E - Fixed constructions
- E02F - Dredgingsoil-shifting
- E02F 3/47 - DredgersSoil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes with grab buckets
Patent holdings for IPC class E02F 3/47
Total number of patents in this class: 50
10-year publication summary
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3
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3
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2
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3
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4
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5
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7
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4
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7
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bauer Maschinen GmbH | 237 |
14 |
| Hitachi Construction Machinery Co., Ltd. | 2728 |
7 |
| Soletanche Freyssinet | 493 |
4 |
| Joy Global Surface Mining Inc | 372 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2839 |
2 |
| Kobelco Construction Machinery Co., Ltd. | 1189 |
2 |
| Korea Institute of Ocean Science & Technology | 433 |
2 |
| Liebherr-Werk Nenzing GmbH | 96 |
2 |
| Caterpillar Inc. | 10118 |
1 |
| Anvil Attachments | 4 |
1 |
| Bauer Spezialtiefbau GmbH | 112 |
1 |
| Cable Arm Inc. | 4 |
1 |
| CMTE Development Limited | 37 |
1 |
| Hunan Sany Intelligent Control Equipment Co., Ltd. | 345 |
1 |
| LaValley Industries, LLC | 70 |
1 |
| Beijing Sany Heavy Industry Co., Ltd | 2 |
1 |
| Modelco S.L. | 1 |
1 |
| Kojimagumi Co., Ltd. | 2 |
1 |
| Nemag IP B.V. | 16 |
1 |
| Beijing Sany Intelligent Manufacturing Technology Co., Ltd. | 17 |
1 |
| Other owners | 1 |