C07C 5/2537
Acids of phosphorus
Official title: {Acids of phosphorus; Salts thereof; Phosphorus oxides}
C07C5/2537 (Acids of phosphorus) appears on 8 US grants and 2 published applications in this corpus.
Search patents in C07C- Granted patents
- 8
- Published applications
- 2
- Assignees
- 4
- Inventors
- 12
- Latest grant
- 29 Jul 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
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
- 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
- Isomerization process and catalyst therefor3 Jun 1986US 4,593,146 APhillips Petroleum Company
- Catalyst composition comprising a heteropoly acid, zinc, and a support component and processes therefor and therewith20 Jul 2006US 2006/0161037 A1ConocoPhillips Company
- Catalyst composition comprising a heteropoly acid, zinc, and a support component and processes therefor and therewith29 Jul 2004US 2004/0147795 A1Phillips Petroleum Company
Most cited
By later US patents
- 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
- Isomerization process9US 4,409,418 APhillips Petroleum Company · 1983
- Process for the isomerization of branched dienes9US 4,762,962 AThe Goodyear Tire & Rubber Company · 1988
- Catalyst3US 4,427,575 APhillips Petroleum Company · 1984