C08B 3/08
Preparation of cellulose esters of organic acids: of monobasic organic acids with
Official title: of monobasic organic acids with three or more carbon atoms, {e.g. propionate or butyrate}
C08B3/08 (Preparation of cellulose esters of organic acids: of monobasic organic acids with) appears on 121 US grants and 165 published applications in this corpus.
Search patents in C08B- Granted patents
- 121
- Published applications
- 165
- Assignees
- 95
- Inventors
- 346
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 5 | 4 |
| 2003 | 4 | 3 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 4 |
| 2009 | 0 | 4 |
| 2010 | 0 | 5 |
| 2011 | 4 | 3 |
| 2012 | 3 | 15 |
| 2013 | 4 | 14 |
| 2014 | 7 | 8 |
| 2015 | 11 | 8 |
| 2016 | 9 | 9 |
| 2017 | 5 | 7 |
| 2018 | 3 | 12 |
| 2019 | 10 | 8 |
| 2020 | 6 | 16 |
| 2021 | 5 | 10 |
| 2022 | 9 | 8 |
| 2023 | 6 | 6 |
| 2024 | 5 | 5 |
| 2025 | 11 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrophobic cellulosic fiber16 Jun 2026US 12,655,543 B2Grasim Industries Limited
- Molding material production method and molding material3 Feb 2026US 12,540,199 B2Seiko Epson Corporation
- Recycle content cellulose ester16 Dec 2025US 12,497,467 B2Exxon Mobil Product Solutions Company
- Monomers, oligomers and polymers of sugars functionalized with straight or branched fatty acids and derivatives, their compositions and uses2 Dec 2025US 12,486,382 B2Totalenergies Onetech
- Surface-modified and dried microfibrillated cellulose reinforced thermoplastic biocomposites21 Oct 2025US 12,448,512 B2FiberLean Technologies Limited
- Method for producing long chain cellulose ester, long chain cellulose ester and its use13 Aug 2026US 2026/0234292 A1Kemira Oyj
- Thiol-functionalized cellulose nanocrystals for applications in rubber30 Jul 2026US 2026/0217950 A1Compagnie Generale Des Etablissements Michelin
- Method for producing dry nanocellulose using radical reaction26 Mar 2026US 2026/0085134 A1Wearcom Inc.
- Resin composition and method for producing same1 Jan 2026US 2026/0002016 A1Panasonic Intellectual Property Management Co., Ltd.
- Method for preparing a thermoplastic composition19 Jun 2025US 2025/0197578 A1
Most cited
By later US patents
- Cellulose esters and their production in carboxylated ionic liquids81US 8,148,518 B2Eastman Chemical Company · 2012
- Low temperature Michael addition reactions53US 5,017,649 AEastman Kodak Company · 1991
- Direct process for the production of cellulose esters48US 5,750,677 AEastman Chemical Company · 1998
- Modified textile and other materials and methods for their preparation46US 6,379,753 B1Nano-Tex, LLC · 2002
- Heterogeneous thiol-ene click modifications of solid polysaccharide-based materials44US 9,447,195 B2Organoclick AB · 2016