E02F 3/9206
Digging devices using blowing effect only, like jets or propellers
Official title: {Digging devices using blowing effect only, like jets or propellers (E02F5/107 takes precedence; passive suction heads with jets E02F3/925; active suction heads with jets E02F3/9262; drilling by jets E21B7/18; slitting by jets E21C25/60)}
E02F3/9206 (Digging devices using blowing effect only, like jets or propellers) appears on 116 US grants and 93 published applications in this corpus.
Search patents in E02F- Granted patents
- 116
- Published applications
- 93
- Assignees
- 62
- Inventors
- 186
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 3 |
| 2004 | 1 | 4 |
| 2005 | 4 | 3 |
| 2006 | 1 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 4 | 2 |
| 2011 | 1 | 4 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 4 | 5 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 3 | 1 |
| 2018 | 4 | 6 |
| 2019 | 2 | 4 |
| 2020 | 6 | 8 |
| 2021 | 4 | 6 |
| 2022 | 2 | 1 |
| 2023 | 6 | 7 |
| 2024 | 7 | 11 |
| 2025 | 10 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for suppression of seabed mining plumes21 Apr 2026US 12,606,982 B2Deep Reach Technology, Inc.
- Non-conductive hydro-excavation wands incorporating wear sleeves23 Sep 2025US 12,421,689 B2MGE Underground, Inc.
- Hydro excavation vacuum apparatus and fluid storage and supply systems thereof12 Aug 2025US 12,385,215 B2Vermeer Manufacturing Company
- Handheld water drill and method22 Jul 2025US 12,366,120 B2Vermeer Manufacturing Company
- Intelligent dredging system for high-piled wharf and control method thereof17 Jun 2025US 12,331,480 B2Tianjin Research Institute for Water Transport Engineering, Ministry of Transport
- Trench cutter17 Sep 2026US 2026/0275680 A1Royal IHC Limited
- Operation system and operation method for underwater jet trenching and cable laying16 Apr 2026US 2026/0103869 A1Crrc Smd (Shanghai), Ltd.
- Pneumatic excavator and methods of use5 Mar 2026US 2026/0062886 A1Sonny's HFI Holdings, LLC
- Spinner tip2 Oct 2025US 2025/0303428 A1Dig Pig Products Inc.
- Digging lance with adjustable vavle handle & methods25 Sep 2025US 2025/0297449 A1
Most cited
By later US patents
- Enhancing liquid jet erosion147US 4,474,251 AHydronautics, Incorporated · 1984
- Enhancing liquid jet erosion91US 4,389,071 AHydronautics, Incorporated · 1983
- Method and apparatus for in situ installation of underground containment barriers under contaminated lands91US 5,542,782 AHalliburton NUS Environmental Corp. · 1996
- Enhancing liquid jet erosion86US 4,681,264 AHydronautics, Incorporated · 1987
- Inclined slope vacuum excavation container52US 7,503,134 B22009