C07C 41/38
By liquid-liquid treatment
Official title: by liquid-liquid treatment
C07C41/38 (By liquid-liquid treatment) appears on 86 US grants and 59 published applications in this corpus.
Search patents in C07C- Granted patents
- 86
- Published applications
- 59
- Assignees
- 79
- Inventors
- 265
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 4 |
| 2013 | 1 | 5 |
| 2014 | 6 | 0 |
| 2015 | 2 | 3 |
| 2016 | 3 | 8 |
| 2017 | 3 | 2 |
| 2018 | 6 | 4 |
| 2019 | 0 | 3 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 3 | 2 |
| 2023 | 2 | 4 |
| 2024 | 0 | 5 |
| 2025 | 2 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Preparation of halogenated alkoxyethane25 Nov 2025US 12,479,785 B2Commonwealth Scientific and Industrial Research Organisation
- Ion-conducting bio-based polymers from raw lignocellulosic biomass6 May 2025US 12,291,592 B2University of Delaware
- Process and facility for recovering methoxypropanols from an aqueous stream11 Jul 2023US 11,697,631 B2Evonik Operations GmbH
- Oxygen stripping in etherification, ethers decomposition and isooctene production11 Apr 2023US 11,623,906 B2Lummus Technology Inc.
- System and method for separation of non-ideal streams30 Jul 2026US 2026/0217635 A1Saudi Arabian Oil Company
- Composition containing fluorine-containing monomer and fluoride ions, method for producing fluorine-containing monomer having reduced fluoride ion content, and method for purifying fluorine-containing monomer7 May 2026US 2026/0125355 A1Daikin Industries, Ltd.
- Bio-based polymers from raw lignocellulosic biomass7 Aug 2025US 2025/0250384 A1
- Method for extracting fluorine-containing ether compound24 Jul 2025US 2025/0236579 A1AGC Inc.
- Supercritical ethylene extraction process for selectively recovering phenolic compounds from bio-crude and/or bio-oil13 Feb 2025US 2025/0051253 A1Research Triangle Institute
Most cited
By later US patents
- Removal of glycols from a polyalkylene glycol dialkyl ether solution49US 4,962,238 AExxon Research & Engineering Co. · 1990
- Fluorinated methyl ethers45US 5,382,704 AE. I. Du Pont de Nemours and Company · 1995
- .beta.-(Sec-alkoxy) ethanol process33US 4,371,716 AShell Oil Company · 1983
- Process for separating methanol from the reaction products obtained in the etherification of C.sub.4 through C.sub.7 isoolefins with methanol33US 4,544,776 ADeutsche Texaco Aktiengesellschaft · 1985
- Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydrocarbons30US 7,060,865 B2ExxonMobil Chemical Patents Inc. · 2006