C07D 307/935
Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans
C07D307/935 (Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans) appears on 925 US grants and 84 published applications in this corpus.
Search patents in C07D- Granted patents
- 925
- Published applications
- 84
- Assignees
- 133
- Inventors
- 638
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 66 | 0 |
| 1977 | 65 | 0 |
| 1978 | 213 | 0 |
| 1979 | 88 | 0 |
| 1980 | 93 | 0 |
| 1981 | 147 | 0 |
| 1982 | 53 | 0 |
| 1983 | 14 | 0 |
| 1984 | 29 | 0 |
| 1985 | 10 | 0 |
| 1986 | 12 | 0 |
| 1987 | 14 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 6 |
| 2005 | 2 | 4 |
| 2006 | 1 | 3 |
| 2007 | 4 | 6 |
| 2008 | 0 | 5 |
| 2009 | 3 | 3 |
| 2010 | 4 | 7 |
| 2011 | 4 | 2 |
| 2012 | 4 | 6 |
| 2013 | 5 | 5 |
| 2014 | 3 | 6 |
| 2015 | 3 | 5 |
| 2016 | 7 | 3 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 4 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 4 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Key intermediate for synthesis of prostaglandin compound and preparation method thereof12 May 2026US 12,623,992 B2Shenzhen Catalys Technology Co., Ltd
- Methods for synthesis of the tricyclic prostaglandin D2 metabolite methyl ester11 Nov 2025US 12,466,791 B2Purdue Research Foundation
- N-((1,2,3,5,6,7-hexahydro-S-indacen-4-yl)carbamoyl)-4, 5, 6, 7-tetrahydrobenzofuran-2-sulfonamide derivatives and related compounds as NLPR3 modulators for the treatment of multiple sclerosis (MS)11 Nov 2025US 12,466,800 B2Zomagen Biosciences Ltd
- Tricyclo-DNA nucleoside precursors and processes for preparing the same3 Jun 2025US 12,319,667 B2Synthena AG
- Process for the preparation of a chiral prostaglandin enol intermediate and intermediate compounds useful in the process14 Jan 2025US 12,195,434 B2Euroapi Hungary Limited Liability Company
- 1h-cyclopenta[b]benzofuran derivatives for the prevention and treatment of virus diseases28 May 2026US 2026/0146034 A1SJP Biotec GmbH
- Methods for synthesis of the tricyclic prostaglandin d2 metabolite methyl ester5 Mar 2026US 2026/0062381 A1Purdue Research Foundation
- Catalyst-controlled site-selective methylene c-h lactonization of dicarboxylic acids23 Oct 2025US 2025/0326731 A1The Scripps Research Institute
- Tricyclo-dna nucleoside precursors and processes for preparing the same28 Aug 2025US 2025/0270179 A1Synthena AG
- Briarane compounds and their use7 Aug 2025US 2025/0250278 A2National Health Research Institutes
Most cited
By later US patents
- 3-Hydroxybutyric acid polymers114US 4,427,614 AImperial Chemical Industries PLC · 1984
- 2-Decarboxy-2-hydroxymethyl-.omega.-phenoxy-PGD analogs57US 4,111,995 AThe Upjohn Company · 1978
- Enlarged-hetero-ring prostacyclin analogs57US 4,123,441 AThe Upjohn Company · 1978
- Synthetic process for the preparation of taxol and other tricyclic and tetracyclic taxanes55US 5,405,972 AFlorida State University · 1995
- 15-Methyl- and 16-phenoxy-PGF.sub.2 .alpha., amides52US 4,128,577 AThe Upjohn Company · 1978