C07D 327/04
Five-membered rings
C07D327/04 (Five-membered rings) appears on 343 US grants and 219 published applications in this corpus.
Search patents in C07D- Granted patents
- 343
- Published applications
- 219
- Assignees
- 165
- Inventors
- 755
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 8 | 0 |
| 1982 | 12 | 0 |
| 1983 | 11 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 4 |
| 2003 | 5 | 3 |
| 2004 | 4 | 5 |
| 2005 | 4 | 8 |
| 2006 | 5 | 7 |
| 2007 | 6 | 6 |
| 2008 | 3 | 4 |
| 2009 | 1 | 7 |
| 2010 | 5 | 9 |
| 2011 | 3 | 7 |
| 2012 | 7 | 11 |
| 2013 | 6 | 9 |
| 2014 | 6 | 7 |
| 2015 | 10 | 12 |
| 2016 | 8 | 7 |
| 2017 | 11 | 5 |
| 2018 | 4 | 4 |
| 2019 | 4 | 5 |
| 2020 | 2 | 14 |
| 2021 | 6 | 15 |
| 2022 | 12 | 13 |
| 2023 | 7 | 7 |
| 2024 | 8 | 22 |
| 2025 | 10 | 14 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing cyclic sulfonic acid ester derivative compound15 Sep 2026US 12,735,394 B2LG Chem.Ltd.
- Compound, non-aqueous electrolyte solution including the same, and lithium secondary battery21 Jul 2026US 12,686,670 B2LG Chem.Ltd.
- Prodrug compounds of 3,4-methylenedioxymethamphetamine (MDMA) and methods of synthesizing the same14 Apr 2026US 12,600,708 B2Apoapsis Holdings, LLC
- Photochromic compound, naphthol derivative, curable composition, optical article, lens, and eyeglasses7 Apr 2026US 12,595,408 B2Tokuyama Corporation
- Short-acting psychoactive compounds of the MDMA class10 Mar 2026US 12,569,466 B2Apoapsis Holdings, LLC
- Structure-based optimization of s6k2 inhibitor cd02 to target melanoma10 Sep 2026US 2026/0263417 A1The Trustees of the University of Pennsylvania
- Highly atom economical process for synthesis of novel co-initiator for photo-induced radical polymerisation20 Aug 2026US 2026/0242348 A1SHIV NADAR (Institution of Eminence Deemed To Be University)
- Sulfonium salt, chemically amplified resist composition, and pattern forming process30 Jul 2026US 2026/0219569 A1Shin-Etsu Chemical Co., Ltd.
- Radiation-sensitive composition, method for forming pattern, and onium salt compound30 Jul 2026US 2026/0219573 A1Jsr Corporation
- Resist composition, resist pattern formation method, compound, and acid generator9 Jul 2026US 2026/0194811 A1Tokyo Ohka Kogyo.Co., Ltd.
Most cited
By later US patents
- Condensed heterocyclic compounds154US 5,037,825 AHoffmann-La Roche Inc. · 1991
- Bridged bicyclic aromatic compounds and their use in modulating gene expression of retinoid receptors129US 5,466,861 ALa Jolla Cancer Research Foundation · 1995
- 2-substituted-5-substituted-1,3-oxathiolanes with antiviral properties128US 5,047,407 AIAF BioChem International, Inc. · 1991
- Benzenesulfonamides and benzamides as therapeutic agents114US 6,583,161 B1Tularik Inc. · 2003
- Method for the synthesis, compositions and use of 2'-deoxy-5-fluoro-3'-thiacytidine and related compounds108US 5,210,085 AEmory University · 1993