E02D 3/11
Improving or preserving soil or rock: by thermal, electrical or electro-chemical means
Official title: by thermal, electrical or electro-chemical means (freezing soil for interrupting passage of underground water E02D19/14)
E02D3/11 (Improving or preserving soil or rock: by thermal, electrical or electro-chemical means) appears on 117 US grants and 69 published applications in this corpus.
Search patents in E02D- Granted patents
- 117
- Published applications
- 69
- Assignees
- 69
- Inventors
- 254
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 7 |
| 2005 | 4 | 3 |
| 2006 | 5 | 1 |
| 2007 | 1 | 4 |
| 2008 | 4 | 3 |
| 2009 | 0 | 2 |
| 2010 | 0 | 5 |
| 2011 | 2 | 3 |
| 2012 | 1 | 2 |
| 2013 | 0 | 5 |
| 2014 | 1 | 0 |
| 2015 | 2 | 2 |
| 2016 | 0 | 4 |
| 2017 | 3 | 5 |
| 2018 | 1 | 2 |
| 2019 | 5 | 4 |
| 2020 | 4 | 3 |
| 2021 | 3 | 1 |
| 2022 | 0 | 5 |
| 2023 | 2 | 0 |
| 2024 | 3 | 3 |
| 2025 | 3 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low temperature thermal treatment2 Jun 2026US 12,643,135 B2TerraTherm, Inc.
- Desert greenhouse skeleton system and control method thereof2 Dec 2025US 12,486,632 B2Sichuan Agricultural University
- Emitter array for a lunar rover4 Nov 2025US 12,460,365 B2GM Global Technology Operations LLC
- Construction machine, displacement tube and method for creating a filling material column in the ground19 Aug 2025US 12,392,102 B2BAUER Spezialtiefbau GmbH
- Pile and method for installing a pile3 Dec 2024US 12,157,983 B2Elomatic Oy
- Structured Insulation Layer Having Differential Convection Cooling Cavities23 Oct 2025US 2025/0327261 A1University of Alaska Fairbanks
- Desert greenhouse skeleton system and control method thereof16 Oct 2025US 2025/0320680 A1Sichuan Agricultural University
- Low temperature thermal treatment23 Jan 2025US 2025/0025924 A1TerraTherm, Inc.
- Emitter array for a lunar rover25 Jul 2024US 2024/0247455 A1GM Global Technology Operations LLC
- Pressurization thermo-sensitive gasification phase change consolidation and thermal desensitization intermittent evaporator using same23 May 2024US 2024/0167240 A1Jiangsu Xintai Geotechnical Technology Co., Ltd.
Most cited
By later US patents
- Electrical heater360US 6,023,554 AShell Oil Company · 2000
- Vacuum method for removing soil contaminants utilizing thermal conduction heating341US 5,318,116 AShell Oil Company · 1994
- Vacuum method for removing soil contaminants utilizing thermal conduction heating337US 5,190,405 AShell Oil Company · 1993
- Closed cryogenic barrier for containment of hazardous material migration in the earth328US 4,974,425 AConcept R.K.K. Limited · 1990
- Method and apparatus for containment of hazardous material migration in the earth326US 5,050,386 ARKK, Limited · 1991