E21B 43/164
Injecting co2 or carbonated water
Official title: {Injecting CO2 or carbonated water (in combination with organic material C09K8/594)}
E21B43/164 (Injecting co2 or carbonated water) appears on 702 US grants and 602 published applications in this corpus.
Search patents in E21B- Granted patents
- 702
- Published applications
- 602
- Assignees
- 286
- Inventors
- 1,410
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 11 | 0 |
| 1981 | 7 | 0 |
| 1982 | 11 | 0 |
| 1983 | 19 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 22 | 0 |
| 1987 | 13 | 0 |
| 1988 | 21 | 0 |
| 1989 | 14 | 0 |
| 1990 | 14 | 0 |
| 1991 | 18 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 5 |
| 2003 | 5 | 8 |
| 2004 | 2 | 2 |
| 2005 | 2 | 4 |
| 2006 | 5 | 7 |
| 2007 | 4 | 10 |
| 2008 | 3 | 11 |
| 2009 | 6 | 12 |
| 2010 | 13 | 25 |
| 2011 | 9 | 16 |
| 2012 | 12 | 23 |
| 2013 | 20 | 28 |
| 2014 | 21 | 40 |
| 2015 | 20 | 36 |
| 2016 | 19 | 32 |
| 2017 | 26 | 40 |
| 2018 | 37 | 31 |
| 2019 | 46 | 36 |
| 2020 | 36 | 31 |
| 2021 | 30 | 22 |
| 2022 | 22 | 36 |
| 2023 | 31 | 46 |
| 2024 | 42 | 35 |
| 2025 | 34 | 47 |
| 2026 | 26 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for CO2 microbubble flooding15 Sep 2026US 12,734,490 B2Dalian University of Technology
- Cement system for CO2 injection and sequestration in mafic/ultramafic rock and method of use8 Sep 2026US 12,729,607 B2Protostar Group Ltd.
- Systems and methods for generation of hydrogen by in-situ (subsurface) serpentinization and carbonization of mafic or ultramafic rock25 Aug 2026US 12,716,336 B2Ohio State Innovation Foundation
- Extraction and integration of waste heat from enhanced geologic hydrogen production25 Aug 2026US 12,716,339 B2Koloma, Inc.
- Methods for enhancing the permeability of reactive rock reservoirs25 Aug 2026US 12,716,340 B2Saudi Arabian Oil Company
- Techniques for predicting co2 saturation in formations based on nuclear magnetic resonance data3 Sep 2026US 2026/0259344 A1Schlumberger Technology Corporation
- Integrated carbon sequestration injection control system27 Aug 2026US 2026/0251037 A1FMC Technologies, Inc.
- Extraction and integration of waste heat from enhanced geologic hydrogen production13 Aug 2026US 2026/0235020 A1Koloma, Inc.
- Enhanced solvent recovery from tight rock and shale oil wells30 Jul 2026US 2026/0218594 A1Oil Technology Group LLC
- Systems and methods for carbon dioxide storage9 Jul 2026US 2026/0195623 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Method for producing methane-containing gaseous mixtures305US 5,388,645 AAmoco Corporation · 1995
- Recovery of oil from oil-bearing formation by continually flowing pressurized heated gas through channel alongside matrix304US 4,856,587 A1989
- Disposal of produced formation fines during oil recovery300US 4,787,452 AMobil Oil Corporation · 1988
- Method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation299US 5,439,054 AAmoco Corporation · 1995
- Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation296US 5,454,666 AAmoco Corporation · 1995