E02F 3/9243
Passive suction heads with no mechanical cutting means
Official title: {Passive suction heads with no mechanical cutting means (E02F5/108 takes precedence)}
E02F3/9243 (Passive suction heads with no mechanical cutting means) appears on 183 US grants and 155 published applications in this corpus.
Search patents in E02F- Granted patents
- 183
- Published applications
- 155
- Assignees
- 102
- Inventors
- 329
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 4 |
| 2006 | 4 | 5 |
| 2007 | 1 | 2 |
| 2008 | 3 | 7 |
| 2009 | 7 | 4 |
| 2010 | 3 | 4 |
| 2011 | 3 | 9 |
| 2012 | 3 | 5 |
| 2013 | 2 | 7 |
| 2014 | 5 | 13 |
| 2015 | 3 | 2 |
| 2016 | 8 | 5 |
| 2017 | 7 | 7 |
| 2018 | 4 | 6 |
| 2019 | 10 | 11 |
| 2020 | 8 | 15 |
| 2021 | 7 | 11 |
| 2022 | 4 | 5 |
| 2023 | 10 | 14 |
| 2024 | 11 | 6 |
| 2025 | 5 | 2 |
| 2026 | 3 | 3 |
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
- Suction generation device14 Apr 2026US 12,601,141 B2Kontorveien 1 AS
- Sea-bed mining vehicle6 Jan 2026US 12,516,497 B2Deeptech NV
- Visual cues to reduce marine life mortality during a dredging operation9 Sep 2025US 12,410,584 B2Great Lakes Dredge & Dock Company, LLC
- Hydro excavation vacuum apparatus and fluid storage and supply systems thereof12 Aug 2025US 12,385,215 B2Vermeer Manufacturing Company
- Exhaust air power plant27 Aug 2026US 2026/0251122 A1The Charles Machine Works, Inc.
- Hose drive systems, vehicles, and related methods9 Jul 2026US 2026/0191384 A1Alamo Group Inc.
- Method for controlling an articulated arm with a mobile remote control unit located spatially distant therefrom, and suction excavator14 May 2026US 2026/0131473 A1Rsp GmbH
- Dredging apparatus27 Nov 2025US 2025/0361695 A1Eddy Pump Corporation
- Boom turret for an excavation vehicle and method thereof5 Jun 2025US 2025/0179765 A1Federal Signal Corporation
Most cited
By later US patents
- Underwater sand pump146US 4,456,424 AToyo Denki Kogyosho Co., Ltd. · 1984
- Earth reduction tool82US 6,470,605 B12002
- Apparatus for excavating soil and the like using supersonic jets63US 4,936,031 AACB Technology Corporation · 1990
- Apparatus for excavating earthen material by evacuation of same63US 5,295,317 A1994
- System and method for hydrate recovery60US 5,950,732 ASyntroleum Corporation · 1999