Y10S 507/938
With microemulsion
Official title: with microemulsion
Y10S507/938 (With microemulsion) appears on 93 US grants and 1 published applications in this corpus.
Search patents in Y10S- Granted patents
- 93
- Published applications
- 1
- Assignees
- 30
- Inventors
- 118
- Latest grant
- 22 May 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 11 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 19 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Composition of microemulsion and method for advanced recovery of heavy oil22 May 2012US 8,183,182 B2Petroleo Brasileiro S.A. - Petrobras
- Recovery of oil using microemulsions4 Aug 1992US 5,135,052 AExxon Production Research Company
- Use of lignin/amine/surfactant blends in enhanced oil recovery19 May 1992US 5,114,599 AReed Lignin, Inc.
- Microemulsion method for improving the injectivity of a well17 Mar 1992US 5,095,989 ATexaco Inc.
- Lignin amine microemulsions10 Mar 1992US 5,094,296 ATexaco Inc.
Most cited
By later US patents
- Method for preparing microemulsions167US 4,146,499 A1979
- High viscosity microemulsions110US 4,472,291 A1984
- Polymer-microemulsion complexes for the enhanced recovery of oil102US 4,353,806 AExxon Research & Engineering Co. · 1982
- Oil recovery process using polymer microemulsion complexes92US 4,360,061 AExxon Research & Engineering Co. · 1982
- Oil recovery method using a surfactant65US 3,977,471 AExxon Production Research Company · 1976