C07F 9/4068
Esters of pyrophosphonic acids
Official title: {Esters of pyrophosphonic acids; Esters of phosphonic acid anhydrides}
C07F9/4068 (Esters of pyrophosphonic acids) appears on 7 US grants and 4 published applications in this corpus.
Search patents in C07F- Granted patents
- 7
- Published applications
- 4
- Assignees
- 6
- Inventors
- 12
- Latest grant
- 13 Dec 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Phosphonic compounds and methods of use thereof13 Dec 2011US 8,076,432 B2Unichem Technologies, Inc.
- Methods of synthesizing phosphonic compounds and compounds thereof28 Oct 2008US 7,442,831 B2Unichem Technologies, Inc.
- Methods for synthesizing phosphonic compounds and compounds thereof2 Sep 2008US 7,420,081 B2Unichem Technologies, Inc.
- Cyclic peptide antifungal agents28 Mar 2000US 6,043,341 AEli Lilly and Company
- Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide12 Jan 1999US 5,858,317 AMonsanto Company
- Flame retardant composition29 Sep 2016US 2016/0281001 A1Thor GmbH
- Phosphonic compounds and methods of use thereof1 Jan 2009US 2009/0005527 A1Unichem Technologies, Inc.
- Methods for synthesizing phosphonic compounds and compounds thereof13 Dec 2007US 2007/0287858 A1Unichem Technologies, Inc.
- Methods for synthesizing phosphonic compounds and compounds thereof12 Jan 2006US 2006/0009654 A1Unichem Technologies, Inc.
Most cited
By later US patents
- Process for the manufacture of vinyl phosphonic acid derivatives11US 4,388,252 AHoechst Aktiengesellschaft · 1983
- Cyclic peptide antifungal agents10US 6,043,341 AEli Lilly and Company · 2000
- Methods for synthesizing phosphonic compounds and compounds thereof5US 7,420,081 B2Unichem Technologies, Inc. · 2008
- Methods of synthesizing phosphonic compounds and compounds thereof4US 7,442,831 B2Unichem Technologies, Inc. · 2008
- Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide2US 5,858,317 AMonsanto Company · 1999