C07F 9/53
Organo-phosphine oxides
Official title: Organo-phosphine oxides; Organo-phosphine thioxides
C07F9/53 (Organo-phosphine oxides) appears on 626 US grants and 474 published applications in this corpus.
Search patents in C07F- Granted patents
- 626
- Published applications
- 474
- Assignees
- 342
- Inventors
- 1,630
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 19 | 0 |
| 1978 | 19 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 18 | 0 |
| 1987 | 14 | 0 |
| 1988 | 10 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 17 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 3 |
| 2002 | 7 | 14 |
| 2003 | 14 | 12 |
| 2004 | 9 | 13 |
| 2005 | 9 | 26 |
| 2006 | 19 | 14 |
| 2007 | 9 | 11 |
| 2008 | 12 | 20 |
| 2009 | 6 | 15 |
| 2010 | 8 | 11 |
| 2011 | 8 | 15 |
| 2012 | 7 | 14 |
| 2013 | 16 | 15 |
| 2014 | 20 | 18 |
| 2015 | 21 | 24 |
| 2016 | 17 | 23 |
| 2017 | 13 | 17 |
| 2018 | 18 | 29 |
| 2019 | 22 | 22 |
| 2020 | 16 | 27 |
| 2021 | 20 | 26 |
| 2022 | 10 | 35 |
| 2023 | 17 | 29 |
| 2024 | 17 | 18 |
| 2025 | 23 | 14 |
| 2026 | 15 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/5325Aromatic phosphine oxides or thioxides224
- C07F 9/5304Acyclic saturated phosphine oxides or thioxides157
- C07F 9/5337Phosphine oxides or thioxides containing the structure -c-p or nc-p75
- C07F 9/5329Polyphosphine oxides or thioxides70
- C07F 9/5333Arylalkane phosphine oxides or thioxides36
- C07F 9/532Cycloaliphatic phosphine oxides or thioxides32
- C07F 9/5345Complexes or chelates of phosphine-oxides or thioxides with metallic compounds or metals22
- C07F 9/5316Unsaturated acyclic phosphine oxides or thioxides15
All 9 subgroupsShow fewer
Recent patents
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- 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.
- Heteroaryl compounds as inhibitors of RIP2 kinase, composition and application thereof30 Jun 2026US 12,668,604 B2Accro Bioscience (HK) Limited
- Hdac1/2 selective inhibitor and use thereof1 Oct 2026US 2026/0297110 A1Wigen Biomedicine Technology (Shanghai) Co., Ltd.
- Novel multifunctional compound and organic light-emitting diode comprising same30 Jul 2026US 2026/0223595 A1Lordin Co., Ltd
- Phosphine oxide-based photoinitiators23 Jul 2026US 2026/0209256 A1Arkema France
- Sulfinylaminobenzamide and sulfonylaminobenzamide derivatives16 Jul 2026US 2026/0200844 A1OrsoBio, Inc.
- Compounds and uses thereof4 Jun 2026US 2026/0152499 A1Suzhou Zanrong Pharma Limited
Most cited
By later US patents
- 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
- Acylphosphine oxide compounds their preparation and use115US 4,298,738 ABASF SE · 1981