C07H 19/04
Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
C07H19/04 (Heterocyclic radicals containing only nitrogen atoms as ring hetero atom) appears on 5,290 US grants and 4,709 published applications in this corpus.
Search patents in C07H- Granted patents
- 5,290
- Published applications
- 4,709
- Assignees
- 1,859
- Inventors
- 9,112
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 42 | 0 |
| 1977 | 35 | 0 |
| 1978 | 30 | 0 |
| 1979 | 36 | 0 |
| 1980 | 27 | 0 |
| 1981 | 22 | 0 |
| 1982 | 26 | 0 |
| 1983 | 36 | 0 |
| 1984 | 31 | 0 |
| 1985 | 34 | 0 |
| 1986 | 29 | 0 |
| 1987 | 38 | 0 |
| 1988 | 39 | 0 |
| 1989 | 61 | 0 |
| 1990 | 63 | 0 |
| 1991 | 83 | 0 |
| 1992 | 77 | 0 |
| 1993 | 83 | 0 |
| 1994 | 60 | 0 |
| 1995 | 110 | 0 |
| 1996 | 132 | 0 |
| 1997 | 218 | 0 |
| 1998 | 213 | 0 |
| 1999 | 158 | 0 |
| 2000 | 118 | 0 |
| 2001 | 157 | 45 |
| 2002 | 154 | 153 |
| 2003 | 145 | 244 |
| 2004 | 106 | 231 |
| 2005 | 124 | 186 |
| 2006 | 131 | 173 |
| 2007 | 100 | 158 |
| 2008 | 108 | 115 |
| 2009 | 112 | 173 |
| 2010 | 120 | 217 |
| 2011 | 108 | 174 |
| 2012 | 139 | 160 |
| 2013 | 136 | 194 |
| 2014 | 155 | 206 |
| 2015 | 167 | 182 |
| 2016 | 155 | 240 |
| 2017 | 153 | 194 |
| 2018 | 144 | 170 |
| 2019 | 167 | 230 |
| 2020 | 164 | 185 |
| 2021 | 161 | 214 |
| 2022 | 121 | 196 |
| 2023 | 132 | 205 |
| 2024 | 126 | 201 |
| 2025 | 136 | 164 |
| 2026 | 68 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07H 19/06Pyrimidine radicals3,076
- C07H 19/16Purine radicals2,796
- C07H 19/14Pyrrolo-pyrimidine radicals285
- C07H 19/23Heterocyclic radicals containing two or more heterocyclic rings condensed among themselves or190
- C07H 19/052Imidazole radicals186
- C07H 19/048Pyridine radicals176
- C07H 19/056Triazole or tetrazole radicals174
- C07H 19/12Triazine radicals139
All 10 subgroupsShow fewer
Recent patents
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- 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
- Polymorphic form of reduced ß-nicotinamide mononucleotide calcium salt, and preparation method and use therefor1 Oct 2026US 2026/0297122 A1Effepharm (Shanghai) Co., Ltd.
- Methods for the synthesis of nucleoside analogues and nucleosides analogues derived therefrom1 Oct 2026US 2026/0297123 A1Simon Fraser University
Most cited
By later US patents
- Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof1,998US 5,143,854 AAffymax Technologies N.V. · 1992
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995
- Arrays of materials attached to a substrate1,410US 5,744,305 AAffymetrix, Inc. · 1998
- Process for preparing polynucleotides1,253US 4,458,066 AUniversity Patents, Inc. · 1984
- Labelled nucleotides1,103US 7,057,026 B2Solexa Limited · 2006