C07F 9/28
With one or more p—c bonds
Official title: with one or more P—C bonds
C07F9/28 (With one or more p—c bonds) appears on 7,031 US grants and 3,924 published applications in this corpus.
Search patents in C07F- Granted patents
- 7,031
- Published applications
- 3,924
- Assignees
- 2,069
- Inventors
- 12,226
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 266 | 0 |
| 1977 | 239 | 0 |
| 1978 | 371 | 0 |
| 1979 | 162 | 0 |
| 1980 | 163 | 0 |
| 1981 | 222 | 0 |
| 1982 | 137 | 0 |
| 1983 | 126 | 0 |
| 1984 | 168 | 0 |
| 1985 | 157 | 0 |
| 1986 | 115 | 0 |
| 1987 | 133 | 0 |
| 1988 | 108 | 0 |
| 1989 | 99 | 0 |
| 1990 | 115 | 0 |
| 1991 | 122 | 0 |
| 1992 | 119 | 0 |
| 1993 | 136 | 0 |
| 1994 | 125 | 0 |
| 1995 | 124 | 0 |
| 1996 | 134 | 0 |
| 1997 | 136 | 0 |
| 1998 | 163 | 0 |
| 1999 | 130 | 0 |
| 2000 | 130 | 0 |
| 2001 | 146 | 36 |
| 2002 | 129 | 136 |
| 2003 | 142 | 152 |
| 2004 | 109 | 182 |
| 2005 | 95 | 181 |
| 2006 | 128 | 168 |
| 2007 | 94 | 140 |
| 2008 | 104 | 167 |
| 2009 | 98 | 185 |
| 2010 | 143 | 153 |
| 2011 | 97 | 167 |
| 2012 | 110 | 153 |
| 2013 | 132 | 148 |
| 2014 | 154 | 192 |
| 2015 | 187 | 199 |
| 2016 | 143 | 168 |
| 2017 | 135 | 155 |
| 2018 | 135 | 176 |
| 2019 | 154 | 180 |
| 2020 | 140 | 102 |
| 2021 | 114 | 158 |
| 2022 | 73 | 154 |
| 2023 | 99 | 141 |
| 2024 | 101 | 133 |
| 2025 | 105 | 117 |
| 2026 | 64 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/38Phosphonic acids [rp2]3,922
- C07F 9/50Organo-phosphines1,672
- C07F 9/54Quaternary phosphonium compounds1,038
- C07F 9/30Phosphinic acids [r2p]836
- C07F 9/48Phosphonous acids [rp2] including [rhp]289
- C07F 9/535Organo-phosphoranes214
- C07F 9/46Phosphinous acids [r2poh], [r2ph]: thiophosphinous acids including[r2psh]177
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
- Compound, and composition for forming hole transporting layer for perovskite solar cells15 Sep 2026US 12,735,395 B2Tokyo Chemical Industry Co., Ltd.
- Polycyclic aromatic derivative compound and organic light-emitting device using same15 Sep 2026US 12,735,435 B2Sfc Co., Ltd.
- Small molecule degraders of STAT38 Sep 2026US 12,729,213 B2The Regents of the University of Michigan
- Novel phosphoantigen prodrug compound and use thereof8 Oct 2026US 2026/0306541 A1
- 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.
- Surface active organic alkali agents1 Oct 2026US 2026/0297420 A1Ultimate Eor Services LLC
- Immobilized quaternary phosphonium salt having phenol domain, method for producing same, and cyclic carbonate production method using same17 Sep 2026US 2026/0274874 A1Shin-Etsu Chemical Co., Ltd.
Most cited
By later US patents
- Diagnostic media413US 4,647,447 ASchering Corporation · 1987
- Electrochromic device368US 6,870,657 B1University College Dublin · 2005
- Lipid derivatives of phosphonoacids for liposomal incorporation and method of use262US 5,194,654 AVical Incorporated · 1993
- Pseudo-random copolymers formed by use of constrained geometry addition polymerization catalysts256US 5,703,187 AThe Dow Chemical Company · 1997
- Stilbene derivatives222US 4,326,055 AHoffmann-La Roche Inc. · 1982