E02D 1/027
By investigating properties relating to fluids in the soil
Official title: {by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability (sampling of groundwater E02D1/06)}
E02D1/027 (By investigating properties relating to fluids in the soil) appears on 46 US grants and 36 published applications in this corpus.
Search patents in E02D- Granted patents
- 46
- Published applications
- 36
- Assignees
- 44
- Inventors
- 135
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 4 | 3 |
| 2018 | 3 | 1 |
| 2019 | 1 | 4 |
| 2020 | 2 | 2 |
| 2021 | 2 | 3 |
| 2022 | 5 | 4 |
| 2023 | 3 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for measuring flow velocity distribution of groundwater using distributed optical fiber with active heating7 Oct 2025US 12,436,012 B2
- Discrete element method (DEM) contact model building method for reflecting weakening of seepage on rock and soil mass strength7 May 2024US 11,977,825 B2Shandong University
- System and method for environmental sampling and analysis19 Sep 2023US 11,761,942 B2Terracon Consultants, Inc.
- Device and method for simulating injections of cement/chemical mixtures into soils28 Mar 2023US 11,613,863 B2Sireg Geotech S.R.L.
- Experimental setup for measuring the vacuum degree and pore pressure at a point of soil mass in vacuum consolidated state and the test operation method thereof10 Jan 2023US 11,549,227 B1Wenzhou University
- Penetration roller for cone penetration test device having structure for assessing replacement time and preventing slip11 Jun 2026US 2026/0160036 A1Korea Institute of Ocean Science & Technology
- Infiltration point detection18 Dec 2025US 2025/0382764 A1Fnv IP B.V.
- Method for measuring flow velocity distribution of groundwater using distributed optical fiber with active heating7 Aug 2025US 2025/0251266 A1Institute of Geology and Geophysics, Chinese Academy of Sciences
- Polyacrylamide-containing indirect negative cavity water pressure measurement system and method27 Mar 2025US 2025/0102488 A1Kadir Has Universitesi
- Stacked cone penetrometer testing sounding unit19 Dec 2024US 2024/0417944 A1Applied Research Associates, Inc.
Most cited
By later US patents
- Mobile turf instrument apparatus having driven, periodically insertable, ground penetrating probe assembly89US 7,628,059 B1The Toro Company · 2009
- Soil penetrometer28US 5,663,649 AHer Majesty the Queen in right of Canada, as represented by Agriculture and Agri-Food Canada · 1997
- Process and apparatus for obtaining samples of liquid and gas from soil23US 5,889,217 A1999
- Tensiometer with removable wick20US 5,103,654 ABattelle Memorial Institute · 1992
- Surface mounted pH sensor for cone penetration testing18US 5,497,091 AApplied Research Associates, Inc. · 1996