C09K 8/594
Compositions used in combination with injected gas
Official title: Compositions used in combination with injected gas {, e.g. CO2 orcarbonated gas}(C09K8/592 takes precedence)
C09K8/594 (Compositions used in combination with injected gas) appears on 488 US grants and 465 published applications in this corpus.
Search patents in C09K- Granted patents
- 488
- Published applications
- 465
- Assignees
- 194
- Inventors
- 1,013
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 11 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 13 | 0 |
| 1991 | 15 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 4 |
| 2008 | 2 | 7 |
| 2009 | 6 | 9 |
| 2010 | 4 | 8 |
| 2011 | 2 | 13 |
| 2012 | 3 | 10 |
| 2013 | 11 | 14 |
| 2014 | 10 | 18 |
| 2015 | 6 | 25 |
| 2016 | 7 | 28 |
| 2017 | 21 | 32 |
| 2018 | 29 | 30 |
| 2019 | 32 | 36 |
| 2020 | 36 | 29 |
| 2021 | 26 | 36 |
| 2022 | 26 | 36 |
| 2023 | 35 | 46 |
| 2024 | 49 | 30 |
| 2025 | 32 | 32 |
| 2026 | 20 | 18 |
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
- Enhanced solvent recovery from tight rock and shale oil wells15 Sep 2026US 12,735,965 B2Oil Technology Group LLC
- Methods and systems for producing organic compounds in a subterranean environment25 Aug 2026US 12,716,334 B2Cemvita Factory, Inc.
- 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
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- Carbonate reaction products of alkyl glycosides and methods for use thereof24 Sep 2026US 2026/0286212 A1Saudi Arabian Oil Company
- System and method for optimized production of hydrocarbons from shale oil reservoirs via cyclic injection24 Sep 2026US 2026/0286213 A1Shale Ingenuity, LLC
- Method for Generating CO2 In Situ for Oilfield Applications Using Propylene Carbonate10 Sep 2026US 2026/0265602 A1Baker Hughes Oilfield Operations LLC
- Enhanced solvent recovery from tight rock and shale oil wells30 Jul 2026US 2026/0218594 A1Oil Technology Group LLC
- Methods, systems, and compositions for in-situ foam generation for liquid unloading23 Jul 2026US 2026/0209595 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method and apparatus for capture and sequester of carbon dioxide and extraction of energy from large land masses during and after extraction of hydrocarbon fuels or contaminants using energy and critical fluids156US 7,562,708 B2Raytheon Company · 2009
- Gaseous and solvent additives for steam injection for thermal recovery of bitumen from tar sands68US 4,271,905 AAlberta Oil Sands Technology and Research Authority · 1981
- Oil recovery process using arkyl aryl polyalkoxyol sulfonate surfactants as mobility control agents67US 5,046,560 AExxon Production Research Company · 1991
- Cyclic solvent process for in-situ bitumen and heavy oil production65US 6,769,486 B2ExxonMobil Upstream Research Company · 2004
- Enhanced oil recovery method employing a high temperature brine tolerant foam-forming composition61US 5,358,045 AChevron Research and Technology Company, a Division of Chevron U.S.A. Inc. · 1994