E02F 5/28
Dredgers or soil-shifting machines for special purposes: for cleaning watercourses or other
Official title: for cleaning watercourses or other ways {(stream regulation E02B3/02)}
E02F5/28 (Dredgers or soil-shifting machines for special purposes: for cleaning watercourses or other) appears on 157 US grants and 100 published applications in this corpus.
Search patents in E02F- Granted patents
- 157
- Published applications
- 100
- Assignees
- 79
- Inventors
- 287
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 10 | 7 |
| 2003 | 8 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 4 |
| 2006 | 2 | 1 |
| 2007 | 3 | 2 |
| 2008 | 0 | 0 |
| 2009 | 4 | 6 |
| 2010 | 4 | 2 |
| 2011 | 3 | 4 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 3 |
| 2015 | 4 | 5 |
| 2016 | 2 | 5 |
| 2017 | 8 | 7 |
| 2018 | 7 | 6 |
| 2019 | 2 | 8 |
| 2020 | 6 | 5 |
| 2021 | 6 | 7 |
| 2022 | 1 | 4 |
| 2023 | 8 | 7 |
| 2024 | 4 | 6 |
| 2025 | 4 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Robot for pond desilting7 Jul 2026US 12,674,300 B2Guangdong Ocean University
- Skid steer trimmer assembly28 Oct 2025US 12,454,807 B1Burchland Mfg. Inc.
- Rotary ditching attachment for a tool manipulating arm28 Oct 2025US 12,454,808 B2Herzog Railroad Services, Inc.
- Ditch digger attachment30 Sep 2025US 12,428,807 B1
- Equipment for in-situ restoration of sediment15 Jul 2025US 12,356,908 B2
- System and method for underwater payload estimation in dragline bucket30 Apr 2026US 2026/0117486 A1Caterpillar Global Mining LLC
- Dredging apparatus27 Nov 2025US 2025/0361695 A1Eddy Pump Corporation
- Pump for Sludge Removal Apparatus24 Jul 2025US 2025/0235898 A1Barrnon Ltd.
- An Equipment for In-situ Restoration of Sediment22 May 2025US 2025/0160274 A1Chinese Research Academy of Envirionmental Sciences
- Material transfer system for a body of water27 Feb 2025US 2025/0067020 A1Sea to Sky Energy Solutions Corp.
Most cited
By later US patents
- Inclined slope vacuum excavation container52US 7,503,134 B22009
- Method and system for cleaning a water basin floor51US 6,017,400 AOrange County Water District · 2000
- Method for in situ soil remediation40US 5,631,160 A1997
- Floating apparatus for weeding and dredging waterways39US 4,070,978 A1978
- Mulcher with improved tooth design34US 7,578,462 B2Attachment Technologies, Inc. · 2009