C07F 9/4025
Esters of polyphosphonic acids
Official title: {Esters of poly(thio)phosphonic acids}
C07F9/4025 (Esters of polyphosphonic acids) appears on 207 US grants and 111 published applications in this corpus.
Search patents in C07F- Granted patents
- 207
- Published applications
- 111
- Assignees
- 116
- Inventors
- 451
- Latest grant
- 20 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 7 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 7 |
| 2003 | 4 | 10 |
| 2004 | 6 | 9 |
| 2005 | 4 | 7 |
| 2006 | 10 | 10 |
| 2007 | 2 | 4 |
| 2008 | 3 | 4 |
| 2009 | 1 | 6 |
| 2010 | 7 | 4 |
| 2011 | 4 | 3 |
| 2012 | 4 | 5 |
| 2013 | 0 | 5 |
| 2014 | 4 | 4 |
| 2015 | 5 | 3 |
| 2016 | 1 | 4 |
| 2017 | 5 | 4 |
| 2018 | 4 | 4 |
| 2019 | 4 | 5 |
| 2020 | 3 | 1 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 0 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/405Containing nitrogen substituent61
- C07F 9/404Containing hydroxy substituents in the hydrocarbon radicals45
- C07F 9/4028Containing no further substituents than -po3h2 groups in free or esterified form26
- C07F 9/4046Containing carboxylic acid or carboxylic acid derivative substituents17
- C07F 9/4037Containing halogen or nitro substituents14
- C07F 9/4043Containing sulfur substituents9
- C07F 9/4053Containing substituents selected from b, si, p , or a metal3
Recent patents
- Method of treating urolithiasis20 Feb 2024US 11,903,954 B2Applaud Medical, Inc.
- Methods of manufacturing microspheres19 Dec 2023US 11,844,807 B2Applaud Medical, Inc.
- Hydrocarbyl tin complex of alkynyl phosphonic acid with antitumor activity and application thereof17 Oct 2023US 11,787,826 B2Zhejiang Hongsheng Intellectual Property Operation Co., Ltd.
- Phospholipid compounds and formulations11 Oct 2022US 11,464,792 B2Applaud Medical, Inc.
- Arabitol and xylitol based flame retardants16 Nov 2021US 11,174,369 B2International Business Machines Corporation
- Phospholipid compounds and formulations27 Aug 2026US 2026/0248830 A1AVVIO Medical, Inc.
- Metal extractant, separation recovery method of metal ions using metal extractant, and compound15 Jan 2026US 2026/0015371 A1FUJIFILM Corporation
- Dendritic molecules, process for their preparation and uses thereof11 Dec 2025US 2025/0376485 A1Superbranche
- Organic compound and preparation method thereof and use thereof27 Nov 2025US 2025/0366297 A1Contemporary Amperex Future Energy Research Institute (Shanghai) Limited
- Phospholipid compounds and formulations13 Jun 2024US 2024/0189333 A1Applaud Medical, Inc.
Most cited
By later US patents
- Bisphosphonate squalene synthetase inhibitors and method109US 5,157,027 AE. R. Squibb & Sons, Inc. · 1992
- Diphosphonate derivatives, pharmaceutical compositions and methods of use84US 4,927,814 ABoehringer Mannheim GmbH · 1990
- Fullerene derivatives, methods of preparing them and their use72US 5,739,376 AHoechst Aktiengesellschaft · 1998
- Phosphonic acid derivatives65US 5,719,303 AEisai Co., Ltd. · 1998
- Phosphonate compounds65US 6,716,825 B2The Regents of the University of California · 2004