C07F 9/547
Heterocyclic compounds
Official title: Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
C07F9/547 (Heterocyclic compounds) appears on 9,116 US grants and 7,435 published applications in this corpus.
Search patents in C07F- Granted patents
- 9,116
- Published applications
- 7,435
- Assignees
- 3,087
- Inventors
- 20,101
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 186 | 0 |
| 1977 | 126 | 0 |
| 1978 | 151 | 0 |
| 1979 | 119 | 0 |
| 1980 | 124 | 0 |
| 1981 | 136 | 0 |
| 1982 | 92 | 0 |
| 1983 | 108 | 0 |
| 1984 | 136 | 0 |
| 1985 | 145 | 0 |
| 1986 | 111 | 0 |
| 1987 | 140 | 0 |
| 1988 | 125 | 0 |
| 1989 | 131 | 0 |
| 1990 | 139 | 0 |
| 1991 | 145 | 0 |
| 1992 | 157 | 0 |
| 1993 | 178 | 0 |
| 1994 | 170 | 0 |
| 1995 | 171 | 0 |
| 1996 | 192 | 0 |
| 1997 | 235 | 0 |
| 1998 | 239 | 0 |
| 1999 | 182 | 0 |
| 2000 | 169 | 0 |
| 2001 | 157 | 36 |
| 2002 | 183 | 175 |
| 2003 | 172 | 201 |
| 2004 | 123 | 264 |
| 2005 | 111 | 240 |
| 2006 | 146 | 250 |
| 2007 | 136 | 225 |
| 2008 | 153 | 211 |
| 2009 | 168 | 254 |
| 2010 | 167 | 266 |
| 2011 | 165 | 252 |
| 2012 | 205 | 255 |
| 2013 | 241 | 324 |
| 2014 | 262 | 362 |
| 2015 | 311 | 365 |
| 2016 | 280 | 369 |
| 2017 | 286 | 343 |
| 2018 | 289 | 356 |
| 2019 | 311 | 361 |
| 2020 | 273 | 314 |
| 2021 | 223 | 295 |
| 2022 | 209 | 328 |
| 2023 | 197 | 390 |
| 2024 | 196 | 385 |
| 2025 | 211 | 350 |
| 2026 | 134 | 264 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07F 9/553Having one nitrogen atom as the only ring hetero atom2,431
- C07F 9/6564Having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium2,313
- C07F 9/6561Containing systems of two or more relevant hetero rings condensed among themselves2,069
- C07F 9/6558Containing at least two different or differently substituted hetero rings neither condensed1,583
- C07F 9/645Having two nitrogen atoms as the only ring hetero atoms1,419
- C07F 9/655Having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as1,248
- C07F 9/6527Having nitrogen and oxygen atoms as the only ring hetero atoms584
- C07F 9/6536Having nitrogen and sulfur atoms with or without oxygen atoms, as the435
All 13 subgroupsShow fewer
- C07F 9/6515Having three nitrogen atoms as the only ring hetero atoms352
- C07F 9/6553Having sulfur atoms, with or without selenium or tellurium atoms, as the340
- C07F 9/6524Having four or more nitrogen atoms as the only ring hetero atoms148
- C07F 9/6596Having atoms other than oxygen, sulfur, selenium, tellurium, nitrogen or phosphorus as79
- C07F 9/5475Having nitrogen and selenium with or without oxygen or sulfur as ring4
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Most cited
By later US patents
- Liposomes with enhanced circulation time1,198US 5,013,556 ALiposome Technology, Inc. · 1991
- Pyrrolidine-containing monomers and oligomers675US 5,519,134 AIsis Pharmaceuticals, Inc. · 1996
- Oligonucleotides with selectably cleavable and/or abasic sites574US 5,367,066 AChiron Corporation · 1994
- Oligonucleotides, a process for preparing the same and their application as mediators of the action of interferon493US 4,476,301 ACentre National De La Recherche Scientifique · 1984
- Carbocyclic nucleosides containing bicyclic rings, oligonucleotides therefrom, process for their preparation, their use and intermediates468US 5,700,920 ANovartis AG · 1997