C07C 43/00
Ethers
Official title: Ethers; Compounds having [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups
C07C43/00 (Ethers) appears on 4,706 US grants and 2,817 published applications in this corpus.
Search patents in C07C- Granted patents
- 4,706
- Published applications
- 2,817
- Assignees
- 1,667
- Inventors
- 9,571
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 97 | 0 |
| 1977 | 63 | 0 |
| 1978 | 68 | 0 |
| 1979 | 88 | 0 |
| 1980 | 74 | 0 |
| 1981 | 121 | 0 |
| 1982 | 110 | 0 |
| 1983 | 103 | 0 |
| 1984 | 84 | 0 |
| 1985 | 117 | 0 |
| 1986 | 102 | 0 |
| 1987 | 123 | 0 |
| 1988 | 100 | 0 |
| 1989 | 121 | 0 |
| 1990 | 126 | 0 |
| 1991 | 125 | 0 |
| 1992 | 133 | 0 |
| 1993 | 139 | 0 |
| 1994 | 106 | 0 |
| 1995 | 99 | 0 |
| 1996 | 104 | 0 |
| 1997 | 121 | 0 |
| 1998 | 119 | 0 |
| 1999 | 79 | 0 |
| 2000 | 75 | 0 |
| 2001 | 93 | 28 |
| 2002 | 75 | 78 |
| 2003 | 77 | 84 |
| 2004 | 51 | 122 |
| 2005 | 54 | 101 |
| 2006 | 67 | 83 |
| 2007 | 56 | 92 |
| 2008 | 57 | 100 |
| 2009 | 63 | 100 |
| 2010 | 64 | 109 |
| 2011 | 62 | 105 |
| 2012 | 71 | 93 |
| 2013 | 94 | 124 |
| 2014 | 82 | 122 |
| 2015 | 125 | 145 |
| 2016 | 120 | 168 |
| 2017 | 110 | 160 |
| 2018 | 125 | 132 |
| 2019 | 121 | 108 |
| 2020 | 108 | 130 |
| 2021 | 98 | 129 |
| 2022 | 72 | 105 |
| 2023 | 80 | 130 |
| 2024 | 66 | 110 |
| 2025 | 63 | 84 |
| 2026 | 55 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chlorinated fluoroaromatics and methods of using same6 Oct 2026US 12,753,140 B23M Innovative Properties Company
- Monomer isomerization and polymer fluorination for sustainable depolymerizable polymers6 Oct 2026US 12,753,252 B2The University of Akron
- Hardmask composition, hardmask layer, and pattern forming method6 Oct 2026US 12,754,481 B2Samsung SDI.Co., Ltd.
- Process for the production of ethyl tertiary butyl ethers22 Sep 2026US 12,741,921 B2Hindustan Petroleum Corporation Limited
- Process for producing para-eugenol and/or ortho-eugenol15 Sep 2026US 12,735,378 B2Specialty Operations France
- Compound, composition, and package structure8 Oct 2026US 2026/0308096 A1Industrial Technology Research Institute
- Compound, composition, method for expressing sensitizing effect and production method8 Oct 2026US 2026/0308100 A1Mitsubishi Gas Chemical Company, Inc.
- Biobased alkyl glyceryl ethers and methods of making and using the same1 Oct 2026US 2026/0297004 A1Inolex Investment Corporation
- Fluoroalcohols as co-solvents for chemical synthesis and methods for producing the same17 Sep 2026US 2026/0274774 A1The University of Mississippi
- Semiconductor photoresist composition and method of forming patterns using the composition17 Sep 2026US 2026/0277100 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Cyclobutyl oligonucleotide surrogates475US 5,359,044 ACiba-Geigy Corporation · 1994
- Photoresist cross-linker and photoresist composition comprising the same474US 6,368,773 B1Hyundai Electronics Industries Co., Ltd. · 2002
- Photoresist monomers having stability to post exposure delay, polymers thereof and photoresist compositions containing the same470US 6,455,225 B1Hyundai Electronics Industries Co., Ltd. · 2002
- Method for producing a non greasy protective and emollient film on the skin377US 4,608,392 ASociete Anonyme dite: L'Oreal · 1986
- Bis mono- and bicyclic aryl and heteroaryl compounds which inhibit EGF and/or PDGF receptor tyrosine kinase226US 5,480,883 ARhone-Poulenc Rorer Pharmaceuticals Inc. · 1996