C07C 41/03
By reaction of oxirane rings with hydroxy groups
Official title: by reaction of oxirane rings with hydroxy groups
C07C41/03 (By reaction of oxirane rings with hydroxy groups) appears on 332 US grants and 227 published applications in this corpus.
Search patents in C07C- Granted patents
- 332
- Published applications
- 227
- Assignees
- 172
- Inventors
- 812
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 15 | 0 |
| 1992 | 17 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 8 | 8 |
| 2003 | 7 | 3 |
| 2004 | 2 | 3 |
| 2005 | 6 | 12 |
| 2006 | 4 | 11 |
| 2007 | 5 | 10 |
| 2008 | 4 | 7 |
| 2009 | 4 | 6 |
| 2010 | 4 | 18 |
| 2011 | 10 | 12 |
| 2012 | 6 | 8 |
| 2013 | 5 | 19 |
| 2014 | 7 | 12 |
| 2015 | 19 | 16 |
| 2016 | 13 | 13 |
| 2017 | 11 | 7 |
| 2018 | 7 | 4 |
| 2019 | 5 | 9 |
| 2020 | 9 | 7 |
| 2021 | 3 | 6 |
| 2022 | 8 | 10 |
| 2023 | 6 | 6 |
| 2024 | 4 | 5 |
| 2025 | 2 | 10 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and process for producing glycols18 Aug 2026US 12,709,590 B2Sabic Global Technologies B.V.
- Compound, precursor compound thereof, surfactant composition, and detergent composition11 Aug 2026US 12,703,838 B2Kao Corporation
- Higher secondary alcohol alkoxylate precursor, higher secondary alcohol alkoxylate adduct and higher secondary alkyl ether sulfate ester salt, and methods for producing these10 Mar 2026US 12,570,592 B2Nippon Shokubai Co., Ltd.
- Process for production of an alkoxylated product5 Aug 2025US 12,378,179 B2Bakelite AG
- Mixture of higher secondary alcohol alkoxylates with different carbon chain lengths and method for producing same7 Jan 2025US 12,187,982 B2Nippon Shokubai Co., Ltd.
- Method for producing a musk fragrance intermediate using copper catalysts10 Sep 2026US 2026/0265168 A1International Flavors & Fragrances Inc.
- Method for producing a musk fragrance intermediate using alcl3 as catalyst10 Sep 2026US 2026/0265169 A1International Flavors & Fragrances Inc.
- Alkoxylation processes using phosphorus and double metal cyanide catalysts23 Jul 2026US 2026/0208173 A1Dow Global Technologies LLC
- Alkoxylation processes using phosphonium dicatecholate catalysts23 Apr 2026US 2026/0109662 A1Dow Global Technologies LLC
- Insect Oils as Natural Raw Materials for Alcohol Production5 Mar 2026US 2026/0062368 A1
Most cited
By later US patents
- .alpha.-Mono (methyl-branched alkyl) glyceryl ether and a skin care cosmetic composition containing the same60US 4,634,719 AKao Soap Co., Ltd. · 1987
- Process for making ethoxylated fatty alcohols with narrow polyethoxy chain distribution59US 4,223,163 AThe Procter & Gamble Company · 1980
- Alkanol ethoxylate-containing detergent compositions58US 4,474,678 AShell Oil Company · 1984
- Process for the preparation of alkoxylates using ester compounds as catalyst57US 5,600,020 AHoechst Aktiengesellschaft · 1997
- Preparation of esterified propoxylated glycerin from free fatty acids49US 4,983,329 AARCO Chemical Technology, L. P. · 1991