C07F 9/65515
The oxygen atom being part of a five-membered ring
Official title: {the oxygen atom being part of a five-membered ring}
C07F9/65515 (The oxygen atom being part of a five-membered ring) appears on 676 US grants and 572 published applications in this corpus.
Search patents in C07F- Granted patents
- 676
- Published applications
- 572
- Assignees
- 349
- Inventors
- 1,853
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 19 | 0 |
| 1993 | 17 | 0 |
| 1994 | 16 | 0 |
| 1995 | 20 | 0 |
| 1996 | 17 | 0 |
| 1997 | 15 | 0 |
| 1998 | 25 | 0 |
| 1999 | 20 | 0 |
| 2000 | 18 | 0 |
| 2001 | 9 | 1 |
| 2002 | 23 | 14 |
| 2003 | 13 | 19 |
| 2004 | 6 | 29 |
| 2005 | 12 | 35 |
| 2006 | 13 | 21 |
| 2007 | 20 | 23 |
| 2008 | 13 | 32 |
| 2009 | 18 | 29 |
| 2010 | 17 | 20 |
| 2011 | 12 | 25 |
| 2012 | 22 | 31 |
| 2013 | 24 | 20 |
| 2014 | 27 | 25 |
| 2015 | 25 | 29 |
| 2016 | 15 | 24 |
| 2017 | 17 | 27 |
| 2018 | 23 | 34 |
| 2019 | 25 | 29 |
| 2020 | 24 | 26 |
| 2021 | 18 | 13 |
| 2022 | 14 | 15 |
| 2023 | 11 | 14 |
| 2024 | 12 | 13 |
| 2025 | 7 | 15 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Light-emitting device and electronic apparatus including the same22 Sep 2026US 12,745,559 B2Samsung Display Co., Ltd.
- Lignan derivative, preparation method therefor and use thereof28 Jul 2026US 12,692,283 B2Shanghai Institute of Materia Medica Chinese Academy of Science
- Inhibitors of the enzyme enolase for precision oncology14 Jul 2026US 12,679,855 B2Board of Regents, The University of Texas System
- Cardioprotective lipid and method of use5 May 2026US 12,617,809 B2Signpath Pharma, Inc.
- Nucleotide cleavable linkers and uses thereof7 Apr 2026US 12,595,508 B2Singular Genomics Systems, Inc.
- Ligand Compound, Organic Chromium Compound, and Catalyst Compositions Containing the Same3 Sep 2026US 2026/0257213 A1LG Chem.Ltd.
- Prodrugs of mdma, mda, and derivatives thereof6 Aug 2026US 2026/0226017 A1EmpathBio, Inc.
- Modulator for promoting binding of butyrophilin 3a1/2a130 Jul 2026US 2026/0216219 A1Unicet Biotech Co. LLC.
- Modulator for promoting binding of butyrophilin 3a1/2a123 Jul 2026US 2026/0207637 A1Unicet Biotech Co. LLC.
- Reagents and their use for modular enantiodivergent synthesis of c-p bonds21 May 2026US 2026/0138999 A1Bristol-Myers Squibb Company
Most cited
By later US patents
- Oligonucleotides with selectably cleavable and/or abasic sites574US 5,367,066 AChiron Corporation · 1994
- Polynucleotide reagents containing modified deoxyribose moieties, and associated methods of synthesis and use462US 5,597,909 AChiron Corporation · 1997
- Multifunctional nucleic acid monomer248US 5,545,730 AChiron Corporation · 1996
- Oligonucleotides with cleavable sites226US 5,552,538 AChiron Corporation · 1996
- Nucleotides for introducing selectably cleavable and/or abasic sites into oligonucleotides209US 5,578,717 AChiron Corporation · 1996