C07D 495/22
In which the condensed system contains four or more hetero rings
Official title: in which the condensed system contains four or more hetero rings
C07D495/22 (In which the condensed system contains four or more hetero rings) appears on 257 US grants and 346 published applications in this corpus.
Search patents in C07D- Granted patents
- 257
- Published applications
- 346
- Assignees
- 172
- Inventors
- 955
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 0 | 2 |
| 2006 | 7 | 3 |
| 2007 | 2 | 3 |
| 2008 | 2 | 5 |
| 2009 | 1 | 8 |
| 2010 | 5 | 6 |
| 2011 | 5 | 17 |
| 2012 | 8 | 15 |
| 2013 | 12 | 20 |
| 2014 | 11 | 19 |
| 2015 | 19 | 25 |
| 2016 | 18 | 18 |
| 2017 | 18 | 18 |
| 2018 | 14 | 16 |
| 2019 | 12 | 22 |
| 2020 | 15 | 27 |
| 2021 | 11 | 17 |
| 2022 | 16 | 23 |
| 2023 | 10 | 21 |
| 2024 | 18 | 22 |
| 2025 | 11 | 17 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Double-capped micromolecule electron donor material and preparation and application thereof14 Apr 2026US 12,604,663 B2Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences
- Organic electroluminescent element and electronic device24 Mar 2026US 12,583,864 B2Idemitsu Kosan Co., Ltd.
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- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314258 A1Universal Display Corporation
- Organic electroluminescent element and electronic device1 Oct 2026US 2026/0297107 A1Idemitsu Kosan Co., Ltd.
- Compounds as sumo activating enzyme inhibitors1 Oct 2026US 2026/0297109 A1Wigen Biomedicine Technology (Shanghai) Co., Ltd.
- Near-infrared aggregation-induced emission organic photothermal molecule and preparation method thereof and application27 Aug 2026US 2026/0248915 A1The Chinese University of Hong Kong, Shenzhen
- Aromatic compound, organic semiconductor layer and organic thin film transistor6 Aug 2026US 2026/0231590 A1Tosoh Corporation
Most cited
By later US patents
- 5,6-Heteroaryl-dipyrido(2,3-B:3', 2'-F) azepines and their use in the prevention or treatment of HIV infection76US 5,919,779 ABoehringer Ingelheim Pharmaceuticals, Inc. · 1999
- Substituted benzo[4,5]imidazo[1,2-a]phenanthro[9,10-c][1,8]naphthyridines, benzo[4,5]imidazo[1,2-a]phenanthro[9,10-c][1,5]naphthyridines and dibenzo[f,h]benzo[4,5]imidazo[2,1-a]pyrazino[2,3-c]isoquinolines as thermally assisted delayed fluorescent materials58US 10,392,387 B2Arizona Board of Regents on behalf of Arizona State University · 2019
- Bromodomain inhibitors and uses thereof50US 9,249,161 B2Constellation Pharmaceuticals, Inc. · 2016
- Hexa-cyclic compound48US 5,834,476 ADaiichi Pharmaceutical Co., Ltd. · 1998
- Discorhabdin compositions and their methods of use38US 4,731,366 AHarbor Branch Oceanographic Institution, Inc. · 1988