C07F 9/30
Phosphinic acids [r2p]
Official title: Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids {; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]}
C07F9/30 (Phosphinic acids [r2p]) appears on 836 US grants and 488 published applications in this corpus.
Search patents in C07F- Granted patents
- 836
- Published applications
- 488
- Assignees
- 341
- Inventors
- 1,559
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 18 | 0 |
| 1978 | 26 | 0 |
| 1979 | 18 | 0 |
| 1980 | 11 | 0 |
| 1981 | 18 | 0 |
| 1982 | 7 | 0 |
| 1983 | 15 | 0 |
| 1984 | 17 | 0 |
| 1985 | 21 | 0 |
| 1986 | 14 | 0 |
| 1987 | 15 | 0 |
| 1988 | 16 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 21 | 0 |
| 1992 | 17 | 0 |
| 1993 | 17 | 0 |
| 1994 | 17 | 0 |
| 1995 | 18 | 0 |
| 1996 | 25 | 0 |
| 1997 | 24 | 0 |
| 1998 | 26 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 29 | 6 |
| 2002 | 18 | 14 |
| 2003 | 16 | 16 |
| 2004 | 11 | 18 |
| 2005 | 6 | 19 |
| 2006 | 14 | 14 |
| 2007 | 5 | 15 |
| 2008 | 9 | 16 |
| 2009 | 12 | 20 |
| 2010 | 14 | 16 |
| 2011 | 11 | 33 |
| 2012 | 15 | 20 |
| 2013 | 17 | 17 |
| 2014 | 22 | 24 |
| 2015 | 22 | 17 |
| 2016 | 13 | 22 |
| 2017 | 16 | 19 |
| 2018 | 17 | 20 |
| 2019 | 19 | 22 |
| 2020 | 26 | 16 |
| 2021 | 14 | 12 |
| 2022 | 10 | 19 |
| 2023 | 9 | 28 |
| 2024 | 14 | 29 |
| 2025 | 17 | 24 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Headgroup lipid compounds and compositions for intracellular delivery of therapeutic agents22 Sep 2026US 12,740,943 B2ModernaTX, Inc.
- Method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid22 Sep 2026US 12,741,980 B2Zhejiang University
- Compound18 Aug 2026US 12,709,627 B2Sumitomo Chemical Company, Limited
- Method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid23 Jun 2026US 12,662,496 B2Zhejiang University
- Crystal form of L-glufosinate and preparation method and use thereof19 May 2026US 12,630,571 B2Jiangsu Sevencontinent Green Technology Research Institute Co., Ltd.
- A process for preparation of glufosinate or isomer or salt thereof13 Aug 2026US 2026/0234172 A1Upl Ltd
- Alkyl Hypophosphorous Acid-Based Flame Retardant Having Controlled Particle Size, And Method For Manufacturing Same13 Aug 2026US 2026/0234448 A1Universal Chemtech Co., Ltd.
- Prodrugs of mdma, mda, and derivatives thereof6 Aug 2026US 2026/0226017 A1EmpathBio, Inc.
- A process for preparation of an intermediate useful for producing glufosinate or isomer or its salts2 Jul 2026US 2026/0184673 A1Upl Ltd
- Hybrid dialkylphosphinic acid salt, preparation method therefor and use thereof4 Jun 2026US 2026/0152623 A1Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
Most cited
By later US patents
- Retroviral protease inhibiting compounds159US 5,142,056 AAbbott Laboratories · 1992
- Ligands for metabotropic glutamate receptors and inhibitors of NAALADase119US 6,528,499 B1Georgetown University · 2003
- Modified PSMA ligands and uses related thereto119US 6,875,886 B2Beth Israel Deaconess Medical Center, Inc. · 2005
- Acylphosphine oxide compounds their preparation and use115US 4,298,738 ABASF SE · 1981
- Acylphosphine oxide compounds113US 4,324,744 ABASF SE · 1982