C07C 41/01
Preparation of ethers
C07C41/01 (Preparation of ethers) appears on 3,859 US grants and 2,756 published applications in this corpus.
Search patents in C07C- Granted patents
- 3,859
- Published applications
- 2,756
- Assignees
- 1,470
- Inventors
- 8,505
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 27 | 0 |
| 1978 | 42 | 0 |
| 1979 | 71 | 0 |
| 1980 | 75 | 0 |
| 1981 | 103 | 0 |
| 1982 | 86 | 0 |
| 1983 | 79 | 0 |
| 1984 | 76 | 0 |
| 1985 | 78 | 0 |
| 1986 | 67 | 0 |
| 1987 | 66 | 0 |
| 1988 | 57 | 0 |
| 1989 | 77 | 0 |
| 1990 | 68 | 0 |
| 1991 | 88 | 0 |
| 1992 | 102 | 0 |
| 1993 | 91 | 0 |
| 1994 | 71 | 0 |
| 1995 | 84 | 0 |
| 1996 | 68 | 0 |
| 1997 | 68 | 0 |
| 1998 | 95 | 0 |
| 1999 | 56 | 0 |
| 2000 | 64 | 0 |
| 2001 | 67 | 15 |
| 2002 | 70 | 57 |
| 2003 | 65 | 63 |
| 2004 | 45 | 93 |
| 2005 | 35 | 73 |
| 2006 | 70 | 78 |
| 2007 | 53 | 72 |
| 2008 | 36 | 110 |
| 2009 | 47 | 99 |
| 2010 | 58 | 135 |
| 2011 | 50 | 121 |
| 2012 | 59 | 114 |
| 2013 | 89 | 160 |
| 2014 | 117 | 141 |
| 2015 | 186 | 179 |
| 2016 | 150 | 175 |
| 2017 | 128 | 137 |
| 2018 | 129 | 104 |
| 2019 | 94 | 100 |
| 2020 | 107 | 118 |
| 2021 | 81 | 122 |
| 2022 | 96 | 125 |
| 2023 | 71 | 107 |
| 2024 | 58 | 105 |
| 2025 | 70 | 83 |
| 2026 | 37 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 41/18By reactions not forming ether-oxygen bonds1,563
- C07C 41/05By addition of compounds to unsaturated compounds715
- C07C 41/34Separation639
- C07C 41/16By reaction of esters of mineral or organic acids with hydroxy or462
- C07C 41/09By dehydration of compounds containing hydroxy groups443
- C07C 41/02From oxiranes361
- C07C 41/14By exchange of organic parts on the ether-oxygen for other organic parts74
- C07C 41/32By isomerisation39
Recent patents
- Catalytic method for the preparation of perfluoroalkoxy-substituted arenes and heteroarenes6 Oct 2026US 12,753,139 B2Freie UniversitäT Berlin
- Selective transition metal catalyzed deuterium incorporation into alkyne and alkene functionalities15 Sep 2026US 12,735,369 B2Marquette University
- Process for producing para-eugenol and/or ortho-eugenol15 Sep 2026US 12,735,378 B2Specialty Operations France
- Cardanol-based reactive diluents and their use and preparation15 Sep 2026US 12,735,381 B2Covestro (Netherlands) B.V.
- Direct aromatic carbon-oxygen and carbon-hydrogen bond functionalization via organic photoredox catalyst8 Sep 2026US 12,729,169 B2The University of North Carolina at Chapel Hill
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Cleaning of co2 containing feed gases24 Sep 2026US 2026/0285690 A1Topsoe A/S
- Fluoroalcohols as co-solvents for chemical synthesis and methods for producing the same17 Sep 2026US 2026/0274774 A1The University of Mississippi
- Method for producing dimethylether17 Sep 2026US 2026/0274777 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Method for producing a musk fragrance intermediate using copper catalysts10 Sep 2026US 2026/0265168 A1International Flavors & Fragrances Inc.
Most cited
By later US patents
- Novel ether substituted fluorescein polyamino acid compounds as fluorescers and quenchers186US 4,318,846 ASyva Company · 1982
- Catalytic distillation process146US 4,232,177 AChemical Research & Licensing Company · 1980
- Fluorinated xanthene derivatives146US 6,162,931 AMolecular Probes, Inc. · 2000
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Method for forming perfluorocarbon ethers134US 4,523,039 AUniversity of Texas · 1985