C07D 421/02
Containing two hetero rings
Official title: containing two hetero rings
C07D421/02 (Containing two hetero rings) appears on 89 US grants and 105 published applications in this corpus.
Search patents in C07D- Granted patents
- 89
- Published applications
- 105
- Assignees
- 69
- Inventors
- 375
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 4 |
| 2011 | 1 | 4 |
| 2012 | 2 | 2 |
| 2013 | 2 | 7 |
| 2014 | 2 | 2 |
| 2015 | 6 | 3 |
| 2016 | 4 | 4 |
| 2017 | 2 | 9 |
| 2018 | 3 | 1 |
| 2019 | 8 | 11 |
| 2020 | 5 | 2 |
| 2021 | 6 | 10 |
| 2022 | 6 | 10 |
| 2023 | 7 | 8 |
| 2024 | 6 | 8 |
| 2025 | 4 | 6 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 421/04Directly linked by a ring-member-to-ring-member bond44
- C07D 421/06Linked by a carbon chain containing only aliphatic carbon atoms27
- C07D 421/12Linked by a chain containing hetero atoms as chain links17
- C07D 421/10Linked by a carbon chain containing aromatic rings11
- C07D 421/08Linked by a carbon chain containing alicyclic rings0
Recent patents
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- Sensor-embedded display panel and electronic device10 Jun 2025US 12,329,022 B2Samsung Electronics Co., Ltd.
- Glycosylation and alkylation method involving benziodoxole reagent11 Jun 2026US 2026/0159507 A1Huazhong University of Science and Technology
- Novel heterocycles as spla2-x inhibitors5 Feb 2026US 2026/0034111 A1Cayman Chemical Company, Incorporated
- Synthesis method and application of benzothiaselenazole-1-oxide compound and derivative thereof15 Jan 2026US 2026/0015332 A1Guangzhou Medical University
- Serotonin receptor modulators and methods of making and using the same18 Sep 2025US 2025/0289817 A1Kuleon LLC
- Sensor-embedded display panel and electronic device28 Aug 2025US 2025/0270232 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Heterocyclic compounds containing 4,6-bis-trichloromethyl-s-triazin-2-ly groups72US 5,055,579 AHoechst Aktiengesellschaft · 1991
- Organic electroluminescent materials and devices29US 10,297,762 B2Universal Display Corporation · 2019
- Compound and organic photoelectric device, image sensor and electronic device including the same18US 10,326,083 B2Samsung Electronics Co., Ltd. · 2019
- Compound for organic photoelectric device and organic photoelectric device, image sensor and electronic device including the same18US 9,941,477 B2Samsung Electronics Co., Ltd. · 2018
- Blocked photographic reagents16US 4,410,618 AEastman Kodak Company · 1983