C07C 41/00
Preparation of ethers
Official title: Preparation of ethers; Preparation of compounds having [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups
C07C41/00 (Preparation of ethers) appears on 4,185 US grants and 2,935 published applications in this corpus.
Search patents in C07C- Granted patents
- 4,185
- Published applications
- 2,935
- Assignees
- 1,547
- Inventors
- 9,013
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 28 | 0 |
| 1978 | 52 | 0 |
| 1979 | 87 | 0 |
| 1980 | 92 | 0 |
| 1981 | 115 | 0 |
| 1982 | 92 | 0 |
| 1983 | 86 | 0 |
| 1984 | 88 | 0 |
| 1985 | 93 | 0 |
| 1986 | 73 | 0 |
| 1987 | 73 | 0 |
| 1988 | 65 | 0 |
| 1989 | 81 | 0 |
| 1990 | 70 | 0 |
| 1991 | 92 | 0 |
| 1992 | 106 | 0 |
| 1993 | 102 | 0 |
| 1994 | 75 | 0 |
| 1995 | 89 | 0 |
| 1996 | 74 | 0 |
| 1997 | 70 | 0 |
| 1998 | 98 | 0 |
| 1999 | 61 | 0 |
| 2000 | 76 | 0 |
| 2001 | 72 | 17 |
| 2002 | 77 | 63 |
| 2003 | 72 | 69 |
| 2004 | 52 | 101 |
| 2005 | 38 | 76 |
| 2006 | 72 | 85 |
| 2007 | 57 | 76 |
| 2008 | 37 | 116 |
| 2009 | 53 | 108 |
| 2010 | 69 | 147 |
| 2011 | 54 | 127 |
| 2012 | 64 | 124 |
| 2013 | 95 | 165 |
| 2014 | 124 | 155 |
| 2015 | 202 | 188 |
| 2016 | 160 | 180 |
| 2017 | 135 | 143 |
| 2018 | 132 | 109 |
| 2019 | 99 | 109 |
| 2020 | 110 | 123 |
| 2021 | 87 | 129 |
| 2022 | 99 | 133 |
| 2023 | 76 | 118 |
| 2024 | 62 | 111 |
| 2025 | 74 | 86 |
| 2026 | 40 | 77 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Compound, composition, method for expressing sensitizing effect and production method8 Oct 2026US 2026/0308100 A1Mitsubishi Gas Chemical Company, Inc.
- 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
- Processes for the preparation of citral and interrelated products24 Sep 2026US 2026/0285794 A1BASF SE
- Fluoroalcohols as co-solvents for chemical synthesis and methods for producing the same17 Sep 2026US 2026/0274774 A1The University of Mississippi
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