C07D 487/22
In which the condensed system contains four or more hetero rings
Official title: in which the condensed system contains four or more hetero rings
C07D487/22 (In which the condensed system contains four or more hetero rings) appears on 1,224 US grants and 1,180 published applications in this corpus.
Search patents in C07D- Granted patents
- 1,224
- Published applications
- 1,180
- Assignees
- 723
- Inventors
- 3,316
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 15 | 0 |
| 1992 | 20 | 0 |
| 1993 | 25 | 0 |
| 1994 | 23 | 0 |
| 1995 | 25 | 0 |
| 1996 | 37 | 0 |
| 1997 | 46 | 0 |
| 1998 | 44 | 0 |
| 1999 | 27 | 0 |
| 2000 | 31 | 0 |
| 2001 | 21 | 4 |
| 2002 | 44 | 23 |
| 2003 | 31 | 50 |
| 2004 | 20 | 45 |
| 2005 | 22 | 37 |
| 2006 | 36 | 54 |
| 2007 | 27 | 50 |
| 2008 | 27 | 40 |
| 2009 | 29 | 59 |
| 2010 | 40 | 39 |
| 2011 | 43 | 58 |
| 2012 | 41 | 60 |
| 2013 | 38 | 47 |
| 2014 | 51 | 49 |
| 2015 | 38 | 55 |
| 2016 | 51 | 31 |
| 2017 | 35 | 47 |
| 2018 | 29 | 34 |
| 2019 | 35 | 56 |
| 2020 | 46 | 48 |
| 2021 | 31 | 52 |
| 2022 | 28 | 48 |
| 2023 | 22 | 73 |
| 2024 | 40 | 53 |
| 2025 | 26 | 38 |
| 2026 | 27 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Inhibitor of apoptosis (IAP) protein antagonists8 Sep 2026US 12,729,208 B2Sanford Burnham Prebys Medical Discovery Institute
- Photoacid generator, and photosensitive composition using same8 Sep 2026US 12,730,374 B2San-Apro Ltd.
- Contact lens with optical prophylaxis1 Sep 2026US 12,724,175 B2High Performance Optics, Inc.
- Colour-stable preparation of a magnesium chlorophyllin alkali metal salt or alkali earth metal salt from natural sources of chlorophyll4 Aug 2026US 12,698,397 B2Givaudan SA
- Scalable anion capture macrocycles28 Jul 2026US 12,692,272 B2Indiana University Research and Technology Corporation
- Anti-inflammatory compounds, pharmaceutical compositions, and methods of treating hemochromatosis and other disorders8 Oct 2026US 2026/0308181 A1Miralogx LLC
- Benzoporphyrin analogs, conjugates, and methods of use thereof1 Oct 2026US 2026/0295049 A1
- Cyclic compounds used as multi-target kinase inhibitors and preparation method therefor24 Sep 2026US 2026/0285873 A1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
- Anti-inflammatory compounds, pharmaceutical compositions, and methods of treating hemochromatosis, and other disorders3 Sep 2026US 2026/0258056 A1Miralogx LLC
- Catalyst for sp3-carbon-hydrogen-bond primary amination reaction, and method for preparing primary amine compound13 Aug 2026US 2026/0234096 A1West China Second University Hospital, Sichuan University
Most cited
By later US patents
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Method of expanded porphyrin-oligonucleotide conjugate synthesis325US 5,565,552 ABoard of Regents, Univ. of Texas Sys. · 1996
- Texaphyrin-oligonucleotide conjugates308US 5,587,371 ABoard of Trustees, Univ. of TX Sys. · 1996
- Texaphyrin metal complexes having improved functionalization254US 5,599,923 ABoard of Regents, University of TX · 1997
- Texaphyrin compounds having improved functionalization233US 5,599,928 ABoard of Regents, The University of Texas System · 1997