C07F 9/50
Organo-phosphines
C07F9/50 (Organo-phosphines) appears on 1,672 US grants and 1,204 published applications in this corpus.
Search patents in C07F- Granted patents
- 1,672
- Published applications
- 1,204
- Assignees
- 717
- Inventors
- 3,678
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 36 | 0 |
| 1978 | 34 | 0 |
| 1979 | 17 | 0 |
| 1980 | 22 | 0 |
| 1981 | 23 | 0 |
| 1982 | 18 | 0 |
| 1983 | 19 | 0 |
| 1984 | 26 | 0 |
| 1985 | 25 | 0 |
| 1986 | 22 | 0 |
| 1987 | 30 | 0 |
| 1988 | 28 | 0 |
| 1989 | 20 | 0 |
| 1990 | 23 | 0 |
| 1991 | 16 | 0 |
| 1992 | 15 | 0 |
| 1993 | 33 | 0 |
| 1994 | 26 | 0 |
| 1995 | 20 | 0 |
| 1996 | 47 | 0 |
| 1997 | 35 | 0 |
| 1998 | 48 | 0 |
| 1999 | 27 | 0 |
| 2000 | 45 | 0 |
| 2001 | 42 | 9 |
| 2002 | 38 | 43 |
| 2003 | 47 | 40 |
| 2004 | 30 | 48 |
| 2005 | 36 | 57 |
| 2006 | 40 | 48 |
| 2007 | 34 | 29 |
| 2008 | 24 | 46 |
| 2009 | 28 | 39 |
| 2010 | 29 | 45 |
| 2011 | 24 | 51 |
| 2012 | 24 | 30 |
| 2013 | 47 | 44 |
| 2014 | 49 | 73 |
| 2015 | 53 | 58 |
| 2016 | 53 | 58 |
| 2017 | 43 | 47 |
| 2018 | 41 | 67 |
| 2019 | 48 | 53 |
| 2020 | 43 | 39 |
| 2021 | 40 | 61 |
| 2022 | 29 | 67 |
| 2023 | 45 | 53 |
| 2024 | 34 | 45 |
| 2025 | 42 | 31 |
| 2026 | 23 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/53Organo-phosphine oxides626
- C07F 9/5022Aromatic phosphines366
- C07F 9/5027Polyphosphines315
- C07F 9/505Preparation235
- C07F 9/5045Complexes or chelates of phosphines with metallic compounds or metals212
- C07F 9/5004Acyclic saturated phosphines161
- C07F 9/52Halophosphines72
- C07F 9/5018Cycloaliphatic phosphines57
Recent patents
- Polycyclic aromatic derivative compound and organic light-emitting device using same15 Sep 2026US 12,735,435 B2Sfc Co., Ltd.
- Polycyclic aromatic compound11 Aug 2026US 12,707,891 B2Kwansei Gakuin Educational Foundation
- Method of extracting carbonic acid, aliphatic acids, esters and alcohols from an aqueous medium21 Jul 2026US 12,686,694 B2Evonik Operations GmbH
- Alkenyl pyrimidine compound, preparation method therefor, and application thereof14 Jul 2026US 12,679,822 B2Hongyun Biotech Co., Ltd.
- Selective hydrogenation of alkynes to alkenes in the presence of a phosphorus compound and an organic sulphur compound30 Jun 2026US 12,668,559 B2Dsm IP Assets B.V.
- Design and synthesis of electron-rich phosphine ligands for selective, sustainable cross-coupling reactions1 Oct 2026US 2026/0295571 A1The Curators of the University of Missouri
- Hdac1/2 selective inhibitor and use thereof1 Oct 2026US 2026/0297110 A1Wigen Biomedicine Technology (Shanghai) Co., Ltd.
- Ligand Compound, Organic Chromium Compound, and Catalyst Compositions Containing the Same3 Sep 2026US 2026/0257213 A1LG Chem.Ltd.
- Organic compound, solar cell, and application thereof27 Aug 2026US 2026/0255872 A1Contemporary Amperex Future Energy Research Institute (Shanghai) Limited
- Thrombolytic activity of disulfide reducing agents13 Aug 2026US 2026/0234154 A1Georgia Tech Research Corporation
Most cited
By later US patents
- Pseudo-random copolymers formed by use of constrained geometry addition polymerization catalysts256US 5,703,187 AThe Dow Chemical Company · 1997
- Bisacylphosphine oxides, the preparation and use thereof183US 4,737,593 AFabrik Pharmazeutischer Praparate · 1988
- Highly luminescent color selective nanocrystalline materials171US 6,861,155 B2Massachusetts Institute of Technology · 2005
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Tellurium-containing nanocrystalline materials156US 6,607,829 B1Massachusetts Institute of Technology · 2003