C07C 5/2525
With inorganic acids
Official title: {with inorganic acids; with salts or anhydrides of acids}
C07C5/2525 (With inorganic acids) appears on 20 US grants and 7 published applications in this corpus.
Search patents in C07C- Granted patents
- 20
- Published applications
- 7
- Assignees
- 13
- Inventors
- 38
- Latest grant
- 29 Jul 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 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 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Catalyst composition comprising a heteropoly acid, zinc, and a support component and processes therefor and therewith29 Jul 2008US 7,405,339 B2ConocoPhillips Company
- Catalyst composition comprising a heteropoly acid, zinc, and a support component and processes therefor and therewith15 Aug 2006US 7,091,152 B2ConocoPhillips Company
- Process for preparing 2,3-dimethyl-2-butene8 Jun 1999US 5,910,618 ASumitomo Chemical Company, Limited
- Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes11 Oct 1988US 4,777,322 ABASF SE
- Process for the isomerization of branched dienes9 Aug 1988US 4,762,962 AThe Goodyear Tire & Rubber Company
- Hydroisomerization and selective hydrogenation of feedstock in ionic liquid-catalyzed alkylation14 Mar 2013US 2013/0066121 A1Chevron U.S.A.Inc.
- Hydroisomerization and selective hydrogenation of feedstock in ionic liquid-catalyzed alkylation21 Apr 2011US 2011/0092753 A1
- Porous microcomposite of fluorinated sulfonic acid and a network of silica3 May 2007US 2007/0098619 A1
- Olefin isomerization3 May 2007US 2007/0100181 A1
- Olefin isomerization3 May 2007US 2007/0100192 A1
Most cited
By later US patents
- Manufacture of synthetic lubricant additives from low molecular weight olefins using boron trifluoride catalysts123US 4,413,156 ATexaco Inc. · 1983
- Isomerization process and catalyst therefor23US 4,593,146 APhillips Petroleum Company · 1986
- Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes13US 4,777,322 ABASF SE · 1988
- Methods and applications of preparative scale chromatography10US 4,042,350 ANational Research Development Corporation · 1977
- Isomerization process9US 4,409,418 APhillips Petroleum Company · 1983