Y10S 507/935
Enhanced oil recovery
Y10S507/935 (Enhanced oil recovery) appears on 854 US grants and 40 published applications in this corpus.
Search patents in Y10S- Granted patents
- 854
- Published applications
- 40
- Assignees
- 161
- Inventors
- 836
- Latest grant
- 7 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 32 | 0 |
| 1978 | 47 | 0 |
| 1979 | 27 | 0 |
| 1980 | 49 | 0 |
| 1981 | 48 | 0 |
| 1982 | 39 | 0 |
| 1983 | 38 | 0 |
| 1984 | 79 | 0 |
| 1985 | 82 | 0 |
| 1986 | 38 | 0 |
| 1987 | 49 | 0 |
| 1988 | 40 | 0 |
| 1989 | 54 | 0 |
| 1990 | 41 | 0 |
| 1991 | 37 | 0 |
| 1992 | 33 | 0 |
| 1993 | 15 | 0 |
| 1994 | 16 | 0 |
| 1995 | 6 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 5 |
| 2009 | 1 | 4 |
| 2010 | 3 | 5 |
| 2011 | 9 | 5 |
| 2012 | 5 | 6 |
| 2013 | 6 | 2 |
| 2014 | 4 | 3 |
| 2015 | 4 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Flooding operations employing chlorine dioxide7 Jan 2020US 10,526,530 B2Sabre Intellectual Property Holdings LLC
- Flooding operations employing chlorine dioxide7 Apr 2015US 8,997,862 B2Sabre Intellectual Property Holdings LLC
- Fracturing operations employing chlorine dioxide31 Mar 2015US 8,991,500 B2Sabre Intellectual Property Holdings LLC
- Utilization of an anhydride as a demulsifier and a solvent for demulsifier formulations3 Mar 2015US 8,969,262 B2Nalco Company
- Hydrocarbon recovery process27 Jan 2015US 8,939,211 B2BP Corporation North America Inc.
- Flooding operations employing chlorine dioxide10 Aug 2017US 2017/0226408 A1Sabre Intellectual Property Holdings LLC
- Flooding operations employing chlorine dioxide30 Apr 2015US 2015/0114650 A1Sabre Intellectual Property Holdings LLC
- Chlorine dioxide-mediated polymer hydration1 Jan 2015US 2015/0005205 A1Sabre Intellectual Property Holdings LLC
- Flooding operations employing chlorine dioxide23 Oct 2014US 2014/0311734 A1Sabre Intellectual Property Holdings LLC
- Flooding operations employing chlorine dioxide23 Jan 2014US 2014/0020899 A1Sabre Intellectual Property Holdings LLC
Most cited
By later US patents
- Cross-linked, water-swellable polymer microgels255US 4,172,066 AThe Dow Chemical Company · 1979
- In situ chemical stimulation of diatomite formations239US 4,828,031 AChevron Research Company · 1989
- Method for reducing the permeability of subterranean formations229US 4,387,769 AExxon Production Research Company · 1983
- Process for the preparation of fluid loss additive and gel breaker221US 4,986,355 AConoco Inc. · 1991
- Surfactant oil recovery process usable in high temperature, high salinity formations177US 4,077,471 ATexaco Inc. · 1978