C07D 213/06
Containing only hydrogen and carbon atoms in addition to the ring nitrogen
Official title: containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
C07D213/06 (Containing only hydrogen and carbon atoms in addition to the ring nitrogen) appears on 1,245 US grants and 1,032 published applications in this corpus.
Search patents in C07D- Granted patents
- 1,245
- Published applications
- 1,032
- Assignees
- 718
- Inventors
- 3,586
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 32 | 0 |
| 1978 | 29 | 0 |
| 1979 | 33 | 0 |
| 1980 | 28 | 0 |
| 1981 | 22 | 0 |
| 1982 | 15 | 0 |
| 1983 | 13 | 0 |
| 1984 | 17 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 22 | 0 |
| 1988 | 8 | 0 |
| 1989 | 29 | 0 |
| 1990 | 17 | 0 |
| 1991 | 23 | 0 |
| 1992 | 23 | 0 |
| 1993 | 24 | 0 |
| 1994 | 11 | 0 |
| 1995 | 14 | 0 |
| 1996 | 4 | 0 |
| 1997 | 12 | 0 |
| 1998 | 16 | 0 |
| 1999 | 12 | 0 |
| 2000 | 20 | 0 |
| 2001 | 10 | 2 |
| 2002 | 23 | 16 |
| 2003 | 23 | 18 |
| 2004 | 13 | 26 |
| 2005 | 14 | 32 |
| 2006 | 13 | 38 |
| 2007 | 6 | 17 |
| 2008 | 15 | 33 |
| 2009 | 18 | 53 |
| 2010 | 23 | 44 |
| 2011 | 37 | 59 |
| 2012 | 44 | 52 |
| 2013 | 34 | 41 |
| 2014 | 43 | 58 |
| 2015 | 53 | 53 |
| 2016 | 37 | 57 |
| 2017 | 45 | 60 |
| 2018 | 48 | 53 |
| 2019 | 46 | 59 |
| 2020 | 37 | 66 |
| 2021 | 45 | 37 |
| 2022 | 38 | 54 |
| 2023 | 36 | 30 |
| 2024 | 18 | 30 |
| 2025 | 36 | 21 |
| 2026 | 14 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 213/16Containing only one pyridine ring669
- C07D 213/22Containing two or more pyridine rings directly linked together227
- C07D 213/08Preparation by ring-closure145
- C07D 213/127Preparation from compounds containing pyridine rings54
- C07D 213/14Preparation from compounds containing heterocyclic oxygen28
- C07D 213/133Preparation by dehydrogenation of hydrogenated pyridine compounds3
Recent patents
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- Circularly polarized OLED emitting layer composition14 Jul 2026US 12,680,018 B2Centre National de la Recherche Scientifique (CNRS)
- Organic electroluminescent element and electronic device using same30 Jun 2026US 12,668,739 B2Idemitsu Kosan Co., Ltd.
- Cannabinoid sulfate esters, their salts and uses thereof16 Jun 2026US 12,655,094 B2London Pharmaceuticals and Research Corporation
- Plurality of host materials and organic electroluminescent device comprising the same12 May 2026US 12,628,556 B2DuPont Specialty Materials Korea Ltd.
- Bis-pyridinium compounds, materials including such, and uses thereof such as in corrosion resistance17 Sep 2026US 2026/0274796 A1Saudi Arabian Oil Company
- New compound and pharmaceutical composition comprising same27 Aug 2026US 2026/0250262 A1Samjin Pharmaceutical Co., Ltd.
- Thermal acid generators, coating compositions, and pattern formation methods20 Aug 2026US 2026/0244096 A1
- Plurality of host materials and organic electroluminescent device comprising the same6 Aug 2026US 2026/0231680 A1
- Non-bipyridyl salt herbicide, preparation method therefor, and use thereof30 Jul 2026US 2026/0215427 A1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
Most cited
By later US patents
- Method for deuteration of a heterocyclic ring304US 7,517,990 B2Wako Pure Chemical Industries, Ltd. · 2009
- Electrochromic compounds298US 5,998,617 AGentex Corporation · 1999
- Transition metal complexes having 2,2'-bipyridine ligands substituted by at least one ammonium alkyl radical181US 5,410,059 AAsulab S. A. · 1995
- Modulators of ATP-binding cassette transporters157US 7,495,103 B2Vertex Pharmaceuticals Incorporated · 2009
- Platinum complex and light emitting device154US 7,442,797 B2Takasago International Corporation · 2008