C07H 19/16
Purine radicals
C07H19/16 (Purine radicals) appears on 2,796 US grants and 2,551 published applications in this corpus.
Search patents in C07H- Granted patents
- 2,796
- Published applications
- 2,551
- Assignees
- 1,132
- Inventors
- 5,141
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 25 | 0 |
| 1978 | 12 | 0 |
| 1979 | 21 | 0 |
| 1980 | 15 | 0 |
| 1981 | 8 | 0 |
| 1982 | 13 | 0 |
| 1983 | 17 | 0 |
| 1984 | 16 | 0 |
| 1985 | 18 | 0 |
| 1986 | 15 | 0 |
| 1987 | 21 | 0 |
| 1988 | 24 | 0 |
| 1989 | 26 | 0 |
| 1990 | 24 | 0 |
| 1991 | 42 | 0 |
| 1992 | 37 | 0 |
| 1993 | 43 | 0 |
| 1994 | 35 | 0 |
| 1995 | 56 | 0 |
| 1996 | 77 | 0 |
| 1997 | 109 | 0 |
| 1998 | 105 | 0 |
| 1999 | 91 | 0 |
| 2000 | 60 | 0 |
| 2001 | 82 | 27 |
| 2002 | 78 | 82 |
| 2003 | 73 | 138 |
| 2004 | 51 | 118 |
| 2005 | 63 | 89 |
| 2006 | 81 | 95 |
| 2007 | 54 | 92 |
| 2008 | 58 | 55 |
| 2009 | 66 | 100 |
| 2010 | 68 | 122 |
| 2011 | 60 | 107 |
| 2012 | 78 | 96 |
| 2013 | 78 | 105 |
| 2014 | 81 | 122 |
| 2015 | 92 | 97 |
| 2016 | 95 | 138 |
| 2017 | 78 | 95 |
| 2018 | 72 | 88 |
| 2019 | 82 | 122 |
| 2020 | 78 | 103 |
| 2021 | 94 | 109 |
| 2022 | 59 | 104 |
| 2023 | 70 | 121 |
| 2024 | 70 | 96 |
| 2025 | 67 | 74 |
| 2026 | 32 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Artificial nucleic acid, method for producing same, and use thereof22 Sep 2026US 12,741,983 B2Riken Genesis Co., Ltd.
- Nucleotide hemi-sulfate salt for the treatment of hepatitis C virus22 Sep 2026US 12,741,984 B2Atea Pharmaceuticals, Inc.
- Processes for preparing oligonucleotides8 Sep 2026US 12,729,219 B2Changzhou Syntheall Pharmaceuticals Co., Ltd.
- Chiral synthons for the synthesis of chiral phosphorothioates25 Aug 2026US 12,715,885 B2Boehringer Ingelheim International GmbH
- Production of bridged artificial nucleosides11 Aug 2026US 12,703,719 B2Nippon Shokubai Co., Ltd.
- Prmt inhibitor compounds and the uses thereof8 Oct 2026US 2026/0306527 A1Purdue Research Foundation
- Substituted bicyclic heterocycle compounds, compositions, and uses thereof1 Oct 2026US 2026/0294949 A1
- Adenosine analog and its use in regulating the circadian clock1 Oct 2026US 2026/0294952 A1National Institute of Biological Sciences, Beijing
- Design and synthesis of novel disulfide linker based nucleotides as reversible terminators for dna sequencing by synthesis1 Oct 2026US 2026/0297664 A1The Trustees of Columbia University in the City of New York
- Process for extraction of adenosine triphosphate (atp) from plant material17 Sep 2026US 2026/0274884 A1
Most cited
By later US patents
- Arrays of materials attached to a substrate1,410US 5,744,305 AAffymetrix, Inc. · 1998
- Labelled nucleotides1,103US 7,057,026 B2Solexa Limited · 2006
- Backbone modified oligonucleotide analogs983US 5,602,240 ACiba-Geigy Corporation · 1997
- N-2 substituted purines806US 5,459,255 AIsis Pharmaceuticals, Inc. · 1995
- Oligonucleoside linkages containing adjacent oxygen and nitrogen atoms772US 5,489,677 AIsis Pharmaceuticals, Inc. · 1996