C07F 9/65719
The ring phosphorus atom and, at least, one ring oxygen atom being
Official title: {the ring phosphorus atom and, at least, one ring oxygen atom being part of a (thio)phosphonous acid derivative}
C07F9/65719 (The ring phosphorus atom and, at least, one ring oxygen atom being) appears on 86 US grants and 54 published applications in this corpus.
Search patents in C07F- Granted patents
- 86
- Published applications
- 54
- Assignees
- 45
- Inventors
- 182
- Latest grant
- 25 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 3 |
| 2003 | 3 | 5 |
| 2004 | 1 | 6 |
| 2005 | 7 | 6 |
| 2006 | 5 | 6 |
| 2007 | 4 | 4 |
| 2008 | 5 | 2 |
| 2009 | 3 | 2 |
| 2010 | 5 | 6 |
| 2011 | 2 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 1 |
| 2014 | 4 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Efficient phosphorous stabilizers based on diphenylamine and heterocyclic diphenylamine derivatives25 Apr 2023US 11,634,560 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- N-heterocyclic phosphines28 Apr 2020US 10,633,403 B2Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Flame-retardant expandable polymers31 Jul 2018US 10,035,892 B2Sunpor Kunststoff Gesellschaft M.B.H.
- Phosphaphenanthrene-carbazole-based organic light-emitting compound, and organic light-emitting device comprising same30 Aug 2016US 9,431,616 B2Inktec Co., Ltd.
- Melamine phenylphosphinate flame retardant compositions4 Nov 2014US 8,877,838 B2BASF SE
- Efficient phosphorous stabilisers based on diphenylamine and heterocyclic diphenylamine derivatives6 May 2021US 2021/0130582 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Organophosphorus compound and flame retardant agent comprising same, and method for producing organophosphorus compound27 Aug 2020US 2020/0270288 A1Maruzen Petrochemical Co., Ltd.
- N-Heterocyclic Phosphines3 May 2018US 2018/0118770 A1Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada
- Flame-retardant expandable polymers16 Feb 2017US 2017/0044342 A1Sunpor Kunststoff Gesellschaft M.B.H.
- P-n-compounds as flame retardants23 Oct 2014US 2014/0316032 A1BASF SE
Most cited
By later US patents
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Ligands for metals and improved metal-catalyzed processes based thereon100US 6,395,916 B1Massachusetts Institute of Technology · 2002
- Ligands for metals and improved metal-catalyzed processes based thereon93US 7,223,879 B2Massachusetts Institute of Technology · 2007
- Ligands for metals and improved metal-catalyzed processes based thereon83US 6,946,560 B2Massachusetts Institute of Technology · 2005
- Ligands for metals and improved metal-catalyzed processes based thereon80US 7,026,498 B2Massachusetts Institute of Technology · 2006