C07D 213/08
Preparation by ring-closure
C07D213/08 (Preparation by ring-closure) appears on 145 US grants and 71 published applications in this corpus.
Search patents in C07D- Granted patents
- 145
- Published applications
- 71
- Assignees
- 81
- Inventors
- 391
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 13 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 7 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 2 |
| 2003 | 3 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 6 |
| 2006 | 2 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 2 | 3 |
| 2010 | 4 | 3 |
| 2011 | 2 | 6 |
| 2012 | 1 | 3 |
| 2013 | 3 | 4 |
| 2014 | 4 | 3 |
| 2015 | 2 | 4 |
| 2016 | 2 | 0 |
| 2017 | 5 | 3 |
| 2018 | 4 | 3 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 3 | 2 |
| 2022 | 2 | 7 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air-stable ni(0)-olefin complexes and their use as catalysts or precatalysts24 Feb 2026US 12,558,677 B2Studiengesellschaft Kohle mbH
- Inhibitors of glycogen synthase 1 (GYS1) and methods of use thereof27 Jan 2026US 12,534,453 B2Maze Therapeutics, Inc.
- Heterocyclic inhibitors of MCT49 Dec 2025US 12,492,171 B2Vettore, LLC
- Combination pharmaceutical agents as RSV inhibitors8 Apr 2025US 12,268,694 B2Enanta Pharmaceuticals, Inc.
- Preparation of sulfonamide herbicide process intermediates3 Sep 2024US 12,077,505 B2Corteva Agriscience LLC
- Inhibitors of glycogen synthase 1 (gys1) and methods of use thereof9 Jul 2026US 2026/0193237 A1Maze Therapeutics, Inc.
- Modified Zeolite Catalyst Compositions and Methods of Use2 Jul 2026US 2026/0183760 A1W. R. Grace & Co.-Conn.
- Process for the fluorination and/or cyclization of an amino alkene or alkyne in a continuous stream and facility for performing the process7 May 2026US 2026/0125349 A1Centre National De La Recherche Scientifique
- Heterocyclic inhibitors of mct426 Feb 2026US 2026/0055062 A1Vettore, LLC
- Catalyst31 Jul 2025US 2025/0242335 A1The University of Manchester
Most cited
By later US patents
- Process for the production of pyridine or alkyl substituted pyridines44US 4,675,410 ANepera, Inc. · 1987
- Process for producing pyridine bases27US 3,946,020 AKoei Chemical Company, Limited · 1976
- 3-arylphenyl sulfide derivative and insecticide and miticide27US 6,509,354 B1Ihara Chemical Industry Co., Ltd. · 2003
- Synthesis of pyridine and alkylpyridines25US 4,220,783 AMobil Oil Corporation · 1980
- Pyridine-substituted benzanilides as potassium ion channel openers23US 6,495,550 B2Icagen, Inc. · 2002