C08B 3/06
Cellulose acetate
Official title: Cellulose acetate {, e.g. mono-acetate, di-acetate or tri-acetate}
C08B3/06 (Cellulose acetate) appears on 205 US grants and 266 published applications in this corpus.
Search patents in C08B- Granted patents
- 205
- Published applications
- 266
- Assignees
- 112
- Inventors
- 550
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 3 |
| 2004 | 5 | 6 |
| 2005 | 2 | 4 |
| 2006 | 6 | 6 |
| 2007 | 0 | 4 |
| 2008 | 2 | 7 |
| 2009 | 2 | 11 |
| 2010 | 3 | 8 |
| 2011 | 4 | 14 |
| 2012 | 7 | 18 |
| 2013 | 6 | 25 |
| 2014 | 8 | 15 |
| 2015 | 12 | 11 |
| 2016 | 10 | 14 |
| 2017 | 11 | 9 |
| 2018 | 4 | 19 |
| 2019 | 11 | 21 |
| 2020 | 11 | 10 |
| 2021 | 13 | 14 |
| 2022 | 12 | 13 |
| 2023 | 11 | 8 |
| 2024 | 10 | 9 |
| 2025 | 5 | 3 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cellulose acetate particles6 Oct 2026US 12,753,246 B2FUJIFILM Business Innovation Corp.
- Cellulose ester compositions derived from recycled Cellulose ester content syngas25 Aug 2026US 12,715,938 B2Eastman Chemical Company
- Molding material production method and molding material3 Feb 2026US 12,540,199 B2Seiko Epson Corporation
- Polymers, articles, and chemicals made from high concentrated recycle derived syngas8 Jul 2025US 12,351,654 B2Eastman Chemical Company
- Cellulose acetate and method for producing cellulose acetate1 Jul 2025US 12,344,681 B2Daicel Corporation
- Process for the acetylation of wood and acetylated wood17 Sep 2026US 2026/0273793 A1Titan Wood Limited
- Blended cellulose acetate fiber and process for the making thereof13 Aug 2026US 2026/0234837 A1Eastman Chemical Company
- Cellulose ester particulates having reduced moisture content for foam sheet production processes6 Aug 2026US 2026/0226197 A1Eastman Chemical Company
- Powder material for three-dimensional shaping and three-dimensionally shaped object6 Aug 2026US 2026/0226282 A1Nippon Paper Industries Co., Ltd.
- A nanocellulose-based composition for producing a foil or a coating of a substrate25 Jun 2026US 2026/0176821 A1Spaceside Holding B.V.
Most cited
By later US patents
- Surface-modified cellulose microfibrils, method for making the same, and use thereof as a filler in composite materials94US 6,117,545 ARhodia Chimie · 2000
- Cellulose esters and their production in carboxylated ionic liquids81US 8,148,518 B2Eastman Chemical Company · 2012
- Direct process for the production of cellulose esters48US 5,750,677 AEastman Chemical Company · 1998
- Process for recycling polyester/cotton blends41US 5,236,959 AHoechst Celanese Corporation · 1993
- Cellulose acylate and solution thereof36US 6,984,730 B2Fuji Photo Film Co., Ltd. · 2006