C07F 9/305
Polyphosphinic acids
Official title: {Poly(thio)phosphinic acids}
C07F9/305 (Polyphosphinic acids) appears on 26 US grants and 28 published applications in this corpus.
Search patents in C07F- Granted patents
- 26
- Published applications
- 28
- Assignees
- 20
- Inventors
- 43
- Latest grant
- 2 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 3 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 4 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 3 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Organosilicon compound, method for producing thereof, and use thereof2 Jul 2024US 12,024,535 B2Dow Global Technologies LLC
- Porous material for storing of molecules and its use12 Apr 2022US 11,298,676 B2Institute of Inorganic Chemistry, CAS
- Arabitol and xylitol based flame retardants16 Nov 2021US 11,174,369 B2International Business Machines Corporation
- Flame retardant mixtures and production thereof28 Apr 2020US 10,633,509 B2Clariant Plastics & Coatings Ltd
- Arabitol and xylitol based flame retardants7 Apr 2020US 10,611,897 B2International Business Machines Corporation
- Organosilicon compound, method for producing thereof, and use thereof20 Jan 2022US 2022/0017547 A1Dow Global Technologies LLC
- Arabitol and xylitol based flame retardants2 Jan 2020US 2020/0002509 A1International Business Machines Corporation
- Porous material for storing of molecules and its use11 Jul 2019US 2019/0210002 A1Institute of Inorganic Chemistry, CAS
- Arabitol and xylitol based flame retardants9 May 2019US 2019/0136014 A1International Business Machines Corporation
- Flame Retardant Mixtures And Production Thereof15 Mar 2018US 2018/0072865 A1Clariant Plastics & Coatings Ltd
Most cited
By later US patents
- Polymeric phosphinic acids and salts thereof29US 6,569,974 B1Clariant GmbH · 2003
- Polymeric phosphinic acids and salts thereof26US 6,727,335 B2Clariant GmbH · 2004
- Polyesters containing structural units derived from phosphonic acids or estere25US 3,962,194 AHoechst Aktiengesellschaft · 1976
- Dialkylphosphinic salts, their use, and a process for their preparation25US 7,446,140 B2Clariant Produkte (Deutschland) GmbH · 2008
- Ethylenebis(hydroxyalkylphosphinic acid) and salts thereof17US 8,084,518 B2Clariant Finance (BVI) Limited · 2011