C07D 473/00
Heterocyclic compounds containing purine ring systems
C07D473/00 (Heterocyclic compounds containing purine ring systems) appears on 3,154 US grants and 3,084 published applications in this corpus.
Search patents in C07D- Granted patents
- 3,154
- Published applications
- 3,084
- Assignees
- 1,472
- Inventors
- 8,451
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 11 | 0 |
| 1978 | 20 | 0 |
| 1979 | 12 | 0 |
| 1980 | 24 | 0 |
| 1981 | 19 | 0 |
| 1982 | 20 | 0 |
| 1983 | 30 | 0 |
| 1984 | 25 | 0 |
| 1985 | 39 | 0 |
| 1986 | 34 | 0 |
| 1987 | 25 | 0 |
| 1988 | 30 | 0 |
| 1989 | 46 | 0 |
| 1990 | 36 | 0 |
| 1991 | 68 | 0 |
| 1992 | 56 | 0 |
| 1993 | 62 | 0 |
| 1994 | 48 | 0 |
| 1995 | 47 | 0 |
| 1996 | 48 | 0 |
| 1997 | 66 | 0 |
| 1998 | 75 | 0 |
| 1999 | 67 | 0 |
| 2000 | 70 | 0 |
| 2001 | 69 | 8 |
| 2002 | 69 | 65 |
| 2003 | 82 | 129 |
| 2004 | 55 | 125 |
| 2005 | 58 | 120 |
| 2006 | 75 | 115 |
| 2007 | 62 | 113 |
| 2008 | 56 | 110 |
| 2009 | 83 | 135 |
| 2010 | 76 | 156 |
| 2011 | 74 | 144 |
| 2012 | 98 | 134 |
| 2013 | 102 | 153 |
| 2014 | 121 | 165 |
| 2015 | 140 | 150 |
| 2016 | 133 | 147 |
| 2017 | 112 | 131 |
| 2018 | 113 | 148 |
| 2019 | 135 | 160 |
| 2020 | 112 | 122 |
| 2021 | 86 | 100 |
| 2022 | 71 | 104 |
| 2023 | 37 | 114 |
| 2024 | 38 | 79 |
| 2025 | 67 | 88 |
| 2026 | 38 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 473/02Heterocyclic compounds containing purine ring systems: with oxygen, sulphur, or nitrogen atoms1,485
- C07D 473/26Heterocyclic compounds containing purine ring systems: with an oxygen, sulphur, or nitrogen1,269
- C07D 473/40Heterocyclic compounds containing purine ring systems: with halogen atoms or perhalogeno-alkyl radicals271
Recent patents
- PIKfyve kinase inhibitors22 Sep 2026US 12,741,960 B2Acurastem Incorporated
- Tetrahydrococannabinolic acid cocrystals11 Aug 2026US 12,702,675 B2Manoira Corporation
- Method for labeling nucleic acid11 Aug 2026US 12,703,881 B2Cambridge Enterprise Limited
- Compound having anti-tumor activity and use thereof28 Jul 2026US 12,692,252 B2Innovstone Therapeutics Limited
- Compounds, compositions, and methods for the treatment of disease30 Jun 2026US 12,667,573 B2Invox Pharma Limited
- Prmt inhibitor compounds and the uses thereof8 Oct 2026US 2026/0306527 A1Purdue Research Foundation
- Substituted pyridinone compounds and uses thereof1 Oct 2026US 2026/0294879 A1Pfizer Inc.
- Adenosine analog and its use in regulating the circadian clock1 Oct 2026US 2026/0294952 A1National Institute of Biological Sciences, Beijing
- Pyrazolopyrimidine derivatives as inhibitors of nlrp31 Oct 2026US 2026/0297092 A1Takeda Pharmaceutical Company Limited
- Novel inhibitors of pikfyve and methods using same1 Oct 2026US 2026/0297108 A1Tme Therapeutics Inc.
Most cited
By later US patents
- Oligonucleotide analogs containing sulfur linkages740US 5,216,141 A1993
- Pyrrolidine-containing monomers and oligomers675US 5,519,134 AIsis Pharmaceuticals, Inc. · 1996
- Chemical amplification based on fluid partitioning573US 7,041,481 B2The Regents of the University of California · 2006
- Boronated nucleoside, nucleotide and oligonucleotide compounds, compositions and methods for using same547US 5,130,302 ABoron Bilogicals, Inc. · 1992
- Cyclobutyl oligonucleotide surrogates475US 5,359,044 ACiba-Geigy Corporation · 1994