C07F 9/141
Esters of phosphorous acids
C07F9/141 (Esters of phosphorous acids) appears on 529 US grants and 315 published applications in this corpus.
Search patents in C07F- Granted patents
- 529
- Published applications
- 315
- Assignees
- 244
- Inventors
- 1,039
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 10 | 0 |
| 1978 | 17 | 0 |
| 1979 | 14 | 0 |
| 1980 | 27 | 0 |
| 1981 | 22 | 0 |
| 1982 | 14 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 13 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 16 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 29 | 0 |
| 1999 | 16 | 0 |
| 2000 | 14 | 0 |
| 2001 | 8 | 2 |
| 2002 | 10 | 6 |
| 2003 | 10 | 9 |
| 2004 | 5 | 14 |
| 2005 | 6 | 4 |
| 2006 | 1 | 8 |
| 2007 | 5 | 9 |
| 2008 | 4 | 9 |
| 2009 | 5 | 6 |
| 2010 | 10 | 18 |
| 2011 | 9 | 12 |
| 2012 | 9 | 15 |
| 2013 | 8 | 14 |
| 2014 | 16 | 29 |
| 2015 | 19 | 18 |
| 2016 | 9 | 12 |
| 2017 | 14 | 15 |
| 2018 | 15 | 28 |
| 2019 | 13 | 9 |
| 2020 | 17 | 15 |
| 2021 | 7 | 12 |
| 2022 | 9 | 9 |
| 2023 | 7 | 10 |
| 2024 | 5 | 10 |
| 2025 | 7 | 16 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/145With hydroxyaryl compounds220
- C07F 9/1411With hydroxyalkyl compounds with further substituents on alkyl128
- C07F 9/146Containing p-halide groups63
- C07F 9/142With hydroxyalkyl compounds without further substituents on alkyl36
- C07F 9/143With unsaturated acyclic alcohols34
- C07F 9/1415Compounds containing the structure p-o-acyl, p-o-heteroatom, p-o-cn31
- C07F 9/1412Polyol derivatives esterified at least twice by phosphorous acid groups23
- C07F 9/144With cycloaliphatic alcohols12
All 9 subgroupsShow fewer
Recent patents
- Organic compound, perovskite precursor solution, perovskite film, perovskite cell, and electric apparatus29 Sep 2026US 12,751,201 B2Contemporary Amperex Technology Co., Limited
- Process for preparing a phosphoramidite and further reaction thereof to the monophosphite22 Sep 2026US 12,741,979 B2Evonik Oxeno GmbH
- Method of purifying phosphorus compound and method of reusing the same4 Aug 2026US 12,698,298 B2Maruzen Petrochemical Co., Ltd.
- Method for producing lithium difluorophosphate, method for producing difluorophosphate ester, lithium difluorophosphate, method for producing nonaqueous electrolytic solution, and method for producing nonaqueous secondary battery26 May 2026US 12,640,395 B2Central Glass Company, Limited
- Bidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions14 Apr 2026US 12,600,737 B2INV Nylon Chemicals Americas, LLC
- Emulsifiers formed from polyol esters of fatty acids6 Aug 2026US 2026/0225991 A1
- Stabilizer, organic material composition, and method for stabilizing organic material16 Apr 2026US 2026/0103482 A1Sumitomo Chemical Company, Limited
- Bidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions5 Feb 2026US 2026/0035395 A1INV Nylon Chemicals Americas, LLC
- Bidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions15 Jan 2026US 2026/0014552 A1Invista Textiles (U.K.) Limited
- Bidentate phosphite ligands, catalytic compositions containing such ligands, and catalytic processes utilizing such catalytic compositions15 Jan 2026US 2026/0015319 A1INV Nylon Chemicals Americas, LLC
Most cited
By later US patents
- Oligonucleotide multiple reporter precursors216US 5,510,475 AHybridon, Inc. · 1996
- Synthesis of oligonucleotides126US 5,571,902 AIsis Pharmaceuticals, Inc. · 1996
- Hydroformylation process and bisphosphite compound used therein78US 5,235,113 AMitsubishi Kasei Corporation · 1993
- Process for preparing oligonucleotides using silyl-containing diamino phosphorous reagents71US 5,614,621 AIsis Pharmaceuticals, Inc. · 1997
- Chemical capping by phosphitylation during oligonucleotide synthesis66US 4,816,571 AApplied Biosystems, LLC · 1989