C07C 2601/04
Systems containing only non-condensed rings: with a four-membered ring
Official title: with a four-membered ring
C07C2601/04 (Systems containing only non-condensed rings: with a four-membered ring) appears on 1,479 US grants and 1,488 published applications in this corpus.
Search patents in C07C- Granted patents
- 1,479
- Published applications
- 1,488
- Assignees
- 690
- Inventors
- 4,882
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 13 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 10 | 0 |
| 1991 | 19 | 0 |
| 1992 | 15 | 0 |
| 1993 | 35 | 0 |
| 1994 | 17 | 0 |
| 1995 | 36 | 0 |
| 1996 | 33 | 0 |
| 1997 | 29 | 0 |
| 1998 | 39 | 0 |
| 1999 | 31 | 0 |
| 2000 | 35 | 0 |
| 2001 | 41 | 11 |
| 2002 | 44 | 37 |
| 2003 | 39 | 52 |
| 2004 | 29 | 91 |
| 2005 | 30 | 72 |
| 2006 | 46 | 59 |
| 2007 | 35 | 60 |
| 2008 | 50 | 60 |
| 2009 | 47 | 49 |
| 2010 | 42 | 63 |
| 2011 | 45 | 49 |
| 2012 | 40 | 75 |
| 2013 | 51 | 49 |
| 2014 | 54 | 60 |
| 2015 | 62 | 64 |
| 2016 | 56 | 66 |
| 2017 | 55 | 71 |
| 2018 | 48 | 59 |
| 2019 | 60 | 53 |
| 2020 | 35 | 50 |
| 2021 | 45 | 54 |
| 2022 | 39 | 59 |
| 2023 | 24 | 67 |
| 2024 | 40 | 77 |
| 2025 | 36 | 47 |
| 2026 | 31 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- NAMPT modulators29 Sep 2026US 12,747,203 B2Cytokinetics, Inc.
- Modulators of programmed death-ligand-122 Sep 2026US 12,741,965 B2Southern Research Institute
- Branched-chain amino acid derivatives to treat disease25 Aug 2026US 12,715,839 B2Intrabio Ltd.
- Ferroptosis inhibitors—diarylamine para-acetamides25 Aug 2026US 12,715,855 B2Sironax Ltd.
- Phenyl-sulfamoyl-benzoic acid derivatives as ERAP1-modulators28 Jul 2026US 12,692,223 B2Grey Wolf Therapeutics Limited
- Bicyclic compounds8 Oct 2026US 2026/0308114 A1Vivace Therapeutics, Inc.
- Novel carboxamide derivatives8 Oct 2026US 2026/0308149 A1Angelini Pharma S.P.A.
- Carbonate containing lipid compounds and compositions for intracellular delivery of therapeutic agents17 Sep 2026US 2026/0274784 A1ModernaTX, Inc.
- Synthesis of vinyl cyclobutyl intermediates27 Aug 2026US 2026/0250233 A1Amgen Inc.
- Method for producing o-substituted serine derivative27 Aug 2026US 2026/0250241 A1Chugai Seiyaku Kabushiki Kaisha
Most cited
By later US patents
- Cyclobutyl oligonucleotide surrogates475US 5,359,044 ACiba-Geigy Corporation · 1994
- Compounds and compositions for intracellular delivery of therapeutic agents143US 9,868,691 B2ModernaTX, Inc. · 2018
- Insecticidal N'-substituted-N,N'-disubstitutedhydrazines107US 6,013,836 ARohm and Haas Company · 2000
- Anilide derivatives and their use for combating botrytis104US 5,330,995 ABASF SE · 1994
- Compounds and compositions for intracellular delivery of therapeutic agents88US 10,857,105 B2MordernaTX, Inc. · 2020