C07F 9/025
Purification
Official title: {Purification; Separation; Stabilisation; Desodorisation of organo-phosphorus compounds (of natural phosphatides C07F9/103; phosphines C07F9/5095)}
C07F9/025 (Purification) appears on 197 US grants and 66 published applications in this corpus.
Search patents in C07F- Granted patents
- 197
- Published applications
- 66
- Assignees
- 105
- Inventors
- 467
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 19 | 0 |
| 1999 | 13 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 0 |
| 2002 | 7 | 7 |
| 2003 | 4 | 5 |
| 2004 | 5 | 7 |
| 2005 | 3 | 1 |
| 2006 | 2 | 5 |
| 2007 | 4 | 3 |
| 2008 | 0 | 3 |
| 2009 | 3 | 2 |
| 2010 | 3 | 3 |
| 2011 | 3 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 4 | 4 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 3 | 4 |
| 2021 | 3 | 4 |
| 2022 | 3 | 2 |
| 2023 | 1 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crystal form of L-glufosinate and preparation method and use thereof19 May 2026US 12,630,571 B2Jiangsu Sevencontinent Green Technology Research Institute Co., Ltd.
- 1,4-dioxane slovate of lithium difluorobis(oxalato)phosphate, method for preparing the same, and electrolyte composition comprising the same30 Dec 2025US 12,512,516 B2Chemtros Co., Ltd.
- Process for the synthesis of substituted chloromethyl dialkylphosphates27 Aug 2024US 12,071,421 B2Helsinn Healthcare SA
- Phosphorus control for waste streams from glyphosate manufacturing processes23 Apr 2024US 11,964,892 B2Monsanto Technology LLC
- Crystalline form of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide with large particle size and crystallization method for making same12 Sep 2023US 11,753,424 B2Tianjin University
- A process for preparation of glufosinate or isomer or salt thereof13 Aug 2026US 2026/0234172 A1Upl Ltd
- Aluminum diethylphosphinate crystal with low fine powder content, preparation method therefor and use thereof23 Jan 2025US 2025/0026771 A1Jiangsu Liside New Material Co., Ltd.
- Synthesis Process of X-IPM, Stable Crystal Form and Application Thereof9 Jan 2025US 2025/0011348 A1Ascentawits Pharmaceuticals, Ltd.
- Crystal form of l-glufosinate and preparation method and use thereof14 Dec 2023US 2023/0399347 A1Jiangsu Sevencontinent Green Technology Research Institute Co., Ltd.
- 1,4-dioxane slovate of lithium difluorobis(oxalato)phosphate, method for preparing the same, and electrolyte composition comprising the same15 Jun 2023US 2023/0187700 A1Chemtros Co., Ltd.
Most cited
By later US patents
- Stabilized sulforaphane62US 7,879,822 B2PharmAgra Labs, Inc. · 2011
- Distillation process for purification of triaryl phosphate esters56US 3,945,891 AFMC Corporation · 1976
- Phosphite treatment of phosphorus acid salts and compositions produced thereby47US 4,263,150 AThe Lubrizol Corporation · 1981
- Process for stabilizing phosphite ligands in hydroformylation reaction mixtures47US 5,364,950 AUnion Carbide Chimicals & Plastics Technology Corporation · 1994
- Process for purifying tertiary organophosphites46US 4,835,299 AUnion Carbide Corporation · 1989