E21B 43/241
Combined with solution mining of non-hydrocarbon minerals
Official title: combined with solution mining of non-hydrocarbon minerals, e.g. solvent pyrolysis of oil shale
E21B43/241 (Combined with solution mining of non-hydrocarbon minerals) appears on 47 US grants and 44 published applications in this corpus.
Search patents in E21B- Granted patents
- 47
- Published applications
- 44
- Assignees
- 33
- Inventors
- 119
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 6 |
| 2011 | 3 | 1 |
| 2012 | 3 | 1 |
| 2013 | 3 | 1 |
| 2014 | 3 | 2 |
| 2015 | 3 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 2 |
| 2021 | 1 | 5 |
| 2022 | 2 | 3 |
| 2023 | 5 | 3 |
| 2024 | 3 | 3 |
| 2025 | 5 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for oil recovery using solvent-assisted electric heating16 Jun 2026US 12,655,733 B2
- Low-to-medium maturity shale oil extraction system based on curtailed power heating18 Nov 2025US 12,473,806 B1Institute of Geology and Geophysics, Chinese Academy of Sciences
- Processes and configurations for subterranean resource extraction26 Aug 2025US 12,398,636 B2102062448 Saskatchewan Ltd.
- Mineral recovery1 Apr 2025US 12,264,570 B2
- Method and system for oil recovery using solvent-assisted electric heating4 Mar 2025US 12,241,351 B2
- Systems and methods for accelerating production of hydrogen from serpentinization of mafic or ultramafic rock19 Feb 2026US 2026/0048984 A1Anning Corporation
- Method and system for oil recovery using solvent-assisted electric heating22 May 2025US 2025/0163787 A1
- Low carbon stimulation technology (steam-co2)5 Dec 2024US 2024/0401449 A1Saudi Arabian Oil Company
- Method and system for oil recovery using solvent-assisted electric heating28 Nov 2024US 2024/0392667 A1
- System, Method and Apparatus for Creating Electrolysis7 Mar 2024US 2024/0076964 A1Foret Plasma Labs, LLC
Most cited
By later US patents
- Recovery system for oil shale deposits144US 4,065,183 ATRW Inc. · 1977
- Integrated in situ retorting and refining of oil shale136US 7,980,312 B12011
- Method for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids97US 7,461,693 B2Schlumberger Technology Corporation · 2008
- Integrated in situ retorting and refining of oil shale90US 8,261,823 B12012
- System and method for minimizing the negative enviromental impact of the oilsands industry76US 8,424,601 B2Ex-Tar Technologies · 2013