E02F
Dredging
Official title: DREDGING; SOIL-SHIFTING (winning peat E21C49/00)
E02F (Dredging) appears on 18,725 US grants and 16,880 published applications in this corpus.
Search patents in E02F- Granted patents
- 18,725
- Published applications
- 16,880
- Assignees
- 3,410
- Inventors
- 22,862
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 327 | 0 |
| 1977 | 302 | 0 |
| 1978 | 275 | 0 |
| 1979 | 166 | 0 |
| 1980 | 215 | 0 |
| 1981 | 228 | 0 |
| 1982 | 201 | 0 |
| 1983 | 182 | 0 |
| 1984 | 142 | 0 |
| 1985 | 152 | 0 |
| 1986 | 145 | 0 |
| 1987 | 161 | 0 |
| 1988 | 180 | 0 |
| 1989 | 214 | 0 |
| 1990 | 200 | 0 |
| 1991 | 184 | 0 |
| 1992 | 196 | 0 |
| 1993 | 199 | 0 |
| 1994 | 164 | 0 |
| 1995 | 179 | 0 |
| 1996 | 200 | 0 |
| 1997 | 188 | 0 |
| 1998 | 229 | 0 |
| 1999 | 291 | 0 |
| 2000 | 293 | 0 |
| 2001 | 284 | 67 |
| 2002 | 278 | 240 |
| 2003 | 266 | 299 |
| 2004 | 239 | 339 |
| 2005 | 255 | 360 |
| 2006 | 269 | 383 |
| 2007 | 229 | 387 |
| 2008 | 200 | 409 |
| 2009 | 270 | 473 |
| 2010 | 344 | 481 |
| 2011 | 352 | 429 |
| 2012 | 319 | 509 |
| 2013 | 442 | 723 |
| 2014 | 582 | 846 |
| 2015 | 729 | 854 |
| 2016 | 689 | 903 |
| 2017 | 758 | 855 |
| 2018 | 698 | 879 |
| 2019 | 833 | 788 |
| 2020 | 737 | 976 |
| 2021 | 727 | 1048 |
| 2022 | 748 | 1068 |
| 2023 | 722 | 926 |
| 2024 | 934 | 985 |
| 2025 | 893 | 928 |
| 2026 | 715 | 725 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- E02F 9/00Component parts of dredgers or soil-shifting machines, not restricted to one of12,843
- E02F 3/00Dredgers10,499
- E02F 5/00Dredgers or soil-shifting machines for special purposes1,792
- E02F 7/00Equipment for conveying or separating excavated material594
- E02F 1/00General working methods with dredgers or soil-shifting machines58
Recent patents
- Work vehicle6 Oct 2026US 12,752,690 B2Kubota Corporation
- Bucket with multiple radius wrapper6 Oct 2026US 12,753,567 B2Caterpillar Inc.
- Working machine6 Oct 2026US 12,753,568 B2J. C. Bamford Excavators Limited
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- Control device and control method for loading machine6 Oct 2026US 12,753,570 B2Komatsu Ltd.
- Method for Operating a High-Voltage System of a Mobile Work Machine8 Oct 2026US 2026/0307495 A1Robert Bosch GmbH
- Mobile machine including thumb control system and associated method8 Oct 2026US 2026/0308867 A1Caterpillar Inc.
- Drive system of working machine8 Oct 2026US 2026/0308868 A1
- Autonomous driving information calculation system and autonomous driving information calculation method8 Oct 2026US 2026/0308869 A1Hazama Ando Corporation
- Drive system for work machine, control device for work machine, control method for work machine, and storage medium storing control program for work machine8 Oct 2026US 2026/0308870 A1Nabtesco Corporation
Most cited
By later US patents
- Display device for working machine858US 7,228,505 B2Komatsu Ltd. · 2007
- Three-parameter optical fiber sensor and system497US 4,986,671 ALuxtron Corporation · 1991
- Force feedback lever236US 4,800,721 ACaterpillar Inc. · 1989
- Method and apparatus for establishing a perimeter defining an area to be traversed by a mobile machine227US 6,112,143 ACaterpillar Inc. · 2000
- Method and apparatus for real-time monitoring and coordination of multiple geography altering machines on a work site223US 5,646,844 ACaterpillar Inc. · 1997