C08B 31/12
Having alkyl or cycloalkyl radicals substituted by heteroatoms
Official title: having alkyl or cycloalkyl radicals substituted by heteroatoms, {e.g. hydroxyalkyl or carboxyalkyl starch}
C08B31/12 (Having alkyl or cycloalkyl radicals substituted by heteroatoms) appears on 215 US grants and 164 published applications in this corpus.
Search patents in C08B- Granted patents
- 215
- Published applications
- 164
- Assignees
- 135
- Inventors
- 577
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 11 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 4 |
| 2003 | 2 | 8 |
| 2004 | 0 | 8 |
| 2005 | 4 | 3 |
| 2006 | 3 | 6 |
| 2007 | 1 | 4 |
| 2008 | 0 | 5 |
| 2009 | 2 | 3 |
| 2010 | 3 | 12 |
| 2011 | 4 | 5 |
| 2012 | 5 | 6 |
| 2013 | 9 | 17 |
| 2014 | 5 | 7 |
| 2015 | 10 | 5 |
| 2016 | 5 | 9 |
| 2017 | 8 | 7 |
| 2018 | 3 | 5 |
| 2019 | 3 | 5 |
| 2020 | 2 | 3 |
| 2021 | 6 | 10 |
| 2022 | 1 | 6 |
| 2023 | 3 | 2 |
| 2024 | 7 | 7 |
| 2025 | 2 | 7 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Amide compound25 Aug 2026US 12,715,948 B2Daikin Industries, Ltd.
- Starch-based carrier material with M cell targeting performance and pH responsiveness, and preparation method therefor and use thereof21 Oct 2025US 12,447,212 B2South China University of Technology
- Taxane-lipid-polysaccharide dual conjugates, preparation methods thereof and uses thereof1 Jul 2025US 12,343,323 B2Santolecan Pharmaceuticals LLC
- Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture10 Dec 2024US 12,162,962 B2Purdue Research Foundation
- Methods of producing vegetable oils with low minerals, metals, or other contaminants3 Dec 2024US 12,157,822 B2POET Research, Inc.
- Dual emulsification of alkenyl succinic anhydride to improve sizing performance and stability20 Aug 2026US 2026/0243024 A1Kemira Oyj
- Polymer16 Jul 2026US 2026/0199871 A1LG Chem.Ltd.
- Taxane-lipid-polysaccharide dual conjugates, preparation methods thereof and uses thereof9 Jul 2026US 2026/0191816 A1Santolecan Pharmaceuticals LLC
- Method for preparing v-type pregelatinized hydroxypropyl starch with high degree of substitution9 Jul 2026US 2026/0193380 A1Jiangnan University
- Dispersible and biodegradable modified starch additive for reinforced polymers14 May 2026US 2026/0132226 A1
Most cited
By later US patents
- Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same158US 8,461,129 B2Archer Daniels Midland Company · 2013
- Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use as paper additives144US 4,675,394 ANational Starch and Chemical Corporation · 1987
- Acetals useful for the preparation of polysaccharide derivatives79US 4,983,748 ANational Starch and Chemical Investment Holding Corporation · 1991
- Acetals useful for the preparation of polysaccharide derivatives73US 4,804,769 ANational Starch and Chemical Corporation · 1989
- Polysaccharide derivatives containing aldehyde groups for use as paper additives49US 4,731,162 ANational Starch and Chemical Corporation · 1988