E02F 3/8858
Submerged units
Official title: {Submerged units (self propelled units for burying conduits or cables in trenches under water E02F5/105)}
E02F3/8858 (Submerged units) appears on 134 US grants and 128 published applications in this corpus.
Search patents in E02F- Granted patents
- 134
- Published applications
- 128
- Assignees
- 103
- Inventors
- 321
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 5 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 4 |
| 2010 | 6 | 4 |
| 2011 | 3 | 7 |
| 2012 | 1 | 3 |
| 2013 | 2 | 9 |
| 2014 | 5 | 10 |
| 2015 | 5 | 8 |
| 2016 | 7 | 8 |
| 2017 | 7 | 6 |
| 2018 | 9 | 4 |
| 2019 | 6 | 6 |
| 2020 | 2 | 9 |
| 2021 | 6 | 4 |
| 2022 | 2 | 5 |
| 2023 | 7 | 10 |
| 2024 | 7 | 7 |
| 2025 | 3 | 5 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Deep-sea mining vehicle25 Aug 2026US 12,716,355 B2Deeptech NV
- Methods for suppression of seabed mining plumes21 Apr 2026US 12,606,982 B2Deep Reach Technology, Inc.
- Suction generation device14 Apr 2026US 12,601,141 B2Kontorveien 1 AS
- Seabed resource lifting apparatus24 Mar 2026US 12,584,288 B2
- Apparatus for removing material from a floor of a body of water10 Mar 2026US 12,571,181 B2Soil Machine Dynamics Limited
- Dredge with Drive Augers and Method of Dredging1 Oct 2026US 2026/0297892 A1
- Offshore Placer Gold Deposit Mining18 Jun 2026US 2026/0168201 A1
- Seafloor Harvesting System2 Apr 2026US 2026/0092524 A1
- Seafloor harvesting system2 Apr 2026US 2026/0092525 A1
- Seafloor harvesting system with authonomous drone swarms2 Apr 2026US 2026/0092526 A1
Most cited
By later US patents
- Ocean mining system and process74US 4,232,903 ALockheed Missiles & Space Company, Inc. · 1980
- Method and system for cleaning a water basin floor51US 6,017,400 AOrange County Water District · 2000
- Process to maintain large clean recreational water bodies43US 7,820,055 B2Crystal Lagoons Corporation LLC · 2010
- Structure to contain a large water body of at least 15,000 m331US 8,062,514 B2Crystal Lagoons Corporation LLC · 2011
- Suction device for cleaning a bottom surface of a structure of at least 15,000 m331US 8,070,942 B2Crystal Lagoons Corporation LLC · 2011