C07D 221/00
Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only
Official title: Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
C07D221/00 (Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only) appears on 2,611 US grants and 2,192 published applications in this corpus.
Search patents in C07D- Granted patents
- 2,611
- Published applications
- 2,192
- Assignees
- 1,206
- Inventors
- 7,218
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 66 | 0 |
| 1977 | 49 | 0 |
| 1978 | 51 | 0 |
| 1979 | 41 | 0 |
| 1980 | 36 | 0 |
| 1981 | 35 | 0 |
| 1982 | 25 | 0 |
| 1983 | 23 | 0 |
| 1984 | 20 | 0 |
| 1985 | 22 | 0 |
| 1986 | 29 | 0 |
| 1987 | 21 | 0 |
| 1988 | 25 | 0 |
| 1989 | 29 | 0 |
| 1990 | 27 | 0 |
| 1991 | 29 | 0 |
| 1992 | 36 | 0 |
| 1993 | 42 | 0 |
| 1994 | 40 | 0 |
| 1995 | 42 | 0 |
| 1996 | 57 | 0 |
| 1997 | 69 | 0 |
| 1998 | 61 | 0 |
| 1999 | 61 | 0 |
| 2000 | 61 | 0 |
| 2001 | 62 | 11 |
| 2002 | 68 | 61 |
| 2003 | 58 | 69 |
| 2004 | 37 | 84 |
| 2005 | 39 | 87 |
| 2006 | 49 | 93 |
| 2007 | 34 | 67 |
| 2008 | 41 | 95 |
| 2009 | 48 | 101 |
| 2010 | 67 | 107 |
| 2011 | 61 | 85 |
| 2012 | 75 | 76 |
| 2013 | 77 | 73 |
| 2014 | 77 | 105 |
| 2015 | 90 | 95 |
| 2016 | 78 | 106 |
| 2017 | 79 | 94 |
| 2018 | 65 | 89 |
| 2019 | 79 | 101 |
| 2020 | 79 | 98 |
| 2021 | 83 | 94 |
| 2022 | 66 | 94 |
| 2023 | 48 | 90 |
| 2024 | 59 | 78 |
| 2025 | 55 | 81 |
| 2026 | 40 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods of making WEE1 inhibitor compounds6 Oct 2026US 12,753,178 B2Recurium IP Holdings, LLC
- NAMPT modulators29 Sep 2026US 12,747,203 B2Cytokinetics, Inc.
- Dopamine receptor d1 agonists and methods of use22 Sep 2026US 12,741,940 B2Mayo Foundation for Medical Education and Research
- Calixarene compounds and uses thereof25 Aug 2026US 12,714,682 B2Universität Wien
- Tetrahydrobenzo-quinoline sulfonamide derivatives useful as IgE modulators23 Jun 2026US 12,662,455 B2Ucb Biopharma Srl
- Compound containing oxo-pyrido-aliphatic ring or aliphatic heterocyclic structure, and medical use thereof8 Oct 2026US 2026/0308164 A1Sichuan Purity Pharmaceutical Co., Ltd.
- Kif18a inhibitor compound, and pharmaceutical composition and preparation method therefor and use thereof1 Oct 2026US 2026/0294927 A1Changchun Genescience Pharmaceutical Co., Ltd.
- Photoactive compounds1 Oct 2026US 2026/0299409 A1Merck Patent GmbH
- Quinolineimine antidegradant compounds and uses thereof24 Sep 2026US 2026/0285812 A1Flexsys IP Holdings, LLC
- Solid forms of {[5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl]amino}acetic acid, compositions, and uses thereof10 Sep 2026US 2026/0263438 A1Akebia Therapeutics, Inc.
Most cited
By later US patents
- Dimeric and trimeric nucleic acid dyes, and associated systems and methods164US 7,776,567 B2AlleLogic Biosciences Corporation · 2010
- HMG-CoA reductase inhibitors and method156US 6,620,821 B2Bristol-Myers Squibb Company · 2003
- Morphinan compounds151US 7,973,049 B2Concert Pharmaceuticals, Inc. · 2011
- Morphinan compounds142US 8,188,110 B2Concert Pharmaceuticals, Inc. · 2012
- Morphinan compounds140US 8,541,436 B2Concert Pharmaceuticals, Inc. · 2013