C08B 11/193
Mixed ethers, i.e. ethers with two or more different etherifying groups
C08B11/193 (Mixed ethers, i.e. ethers with two or more different etherifying groups) appears on 201 US grants and 156 published applications in this corpus.
Search patents in C08B- Granted patents
- 201
- Published applications
- 156
- Assignees
- 69
- Inventors
- 338
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 3 |
| 2002 | 5 | 2 |
| 2003 | 5 | 9 |
| 2004 | 0 | 2 |
| 2005 | 7 | 5 |
| 2006 | 2 | 5 |
| 2007 | 0 | 12 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 0 | 2 |
| 2011 | 6 | 6 |
| 2012 | 4 | 10 |
| 2013 | 2 | 10 |
| 2014 | 5 | 11 |
| 2015 | 11 | 10 |
| 2016 | 17 | 6 |
| 2017 | 10 | 7 |
| 2018 | 4 | 10 |
| 2019 | 6 | 7 |
| 2020 | 10 | 11 |
| 2021 | 6 | 3 |
| 2022 | 5 | 6 |
| 2023 | 3 | 7 |
| 2024 | 0 | 4 |
| 2025 | 1 | 2 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- A method of preparing multi-functionalized cellulose and use thereof for preparing multi-functionalized nanofibrillated cellulose8 May 2025US 2025/0146186 A1
- Novel hydroxyalkyl methylcellulose and its use31 Oct 2024US 2024/0360250 A1Nutrition & Biosciences USA 1, LLC
- Composition containing cationic hydroxyethyl cellulose26 Sep 2024US 2024/0316205 A1Nutrition & Biosciences USA 1, LLC
- Composition comprising gluten-free flour and hydroxypropyl methyl cellulose5 Sep 2024US 2024/0292848 A1Nutrition & Biosciences USA 1, LLC
Most cited
By later US patents
- Modified nonionic cellulose ethers158US 4,228,277 AHercules Incorporated · 1980
- Hydrophobe substituted, water-soluble cationic polysaccharides89US 4,663,159 AUnion Carbide Corporation · 1987
- Building composition containing 3-alkoxy-2-hydroxypropylhydroxyethyl cellulose74US 4,939,192 AAqualon Company · 1990
- Surfactant-soluble cellulose derivatives47US 4,243,802 AHercules Incorporated · 1981
- Process for preparing ethylcarboxymethylcellulose41US 4,311,833 ADaicel Chemical Industries, Ltd. · 1982