C08J 2301/12
Cellulose acetate
C08J2301/12 (Cellulose acetate) appears on 243 US grants and 361 published applications in this corpus.
Search patents in C08J- Granted patents
- 243
- Published applications
- 361
- Assignees
- 132
- Inventors
- 734
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 2 |
| 2003 | 3 | 7 |
| 2004 | 3 | 10 |
| 2005 | 4 | 13 |
| 2006 | 7 | 9 |
| 2007 | 4 | 10 |
| 2008 | 6 | 10 |
| 2009 | 3 | 14 |
| 2010 | 4 | 10 |
| 2011 | 6 | 17 |
| 2012 | 7 | 12 |
| 2013 | 7 | 15 |
| 2014 | 11 | 12 |
| 2015 | 10 | 24 |
| 2016 | 13 | 13 |
| 2017 | 9 | 12 |
| 2018 | 10 | 14 |
| 2019 | 8 | 18 |
| 2020 | 11 | 15 |
| 2021 | 11 | 16 |
| 2022 | 7 | 21 |
| 2023 | 16 | 27 |
| 2024 | 19 | 28 |
| 2025 | 13 | 14 |
| 2026 | 15 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biodegradable compositions and articles made from cellulose acetate29 Sep 2026US 12,747,333 B2Eastman Chemical Company
- Cellulose particles15 Sep 2026US 12,735,557 B2FUJIFILM Business Innovation Corp.
- Optical film, display device, and composition for forming colored layer18 Aug 2026US 12,710,566 B2Toppan Inc.
- Composition for forming colored layer, optical film, and display device11 Aug 2026US 12,703,799 B2Toppan Inc.
- Biodegradable compositions and articles made from cellulose acetate23 Jun 2026US 12,662,587 B2Eastman Chemical Company
- Cellulose ester compositions with flow aid24 Sep 2026US 2026/0286081 A1Eastman Chemical Company
- Methods of making cellulose ester microbeads with a solvent containing water17 Sep 2026US 2026/0275056 A1Eastman Chemical Company
- Methods of making cellulose ester microbeads with solvent recovery and recycle17 Sep 2026US 2026/0275057 A1Eastman Chemical Company
- Methods of making cellulose ester microbeads with a solvent containing alkyl acetate10 Sep 2026US 2026/0265467 A1Eastman Chemical Company
- Fluorine-free hydrophobic permeable material27 Aug 2026US 2026/0250478 A1Donaldson Company, Inc.
Most cited
By later US patents
- Method of manufacture of cellulose ester film92US 5,219,510 AEastman Kodak Company · 1993
- Light sensitive silver halide element with cellulose ester film base68US 5,288,715 AEastman Kodak Company · 1994
- Anti-glare film and process for producing same thereof51US 6,696,140 B2Dai Nippon Printing Co.Ltd. · 2004
- Humidity dependence improver for polymer film, polymer film, protective film for polarizer, retardation film, polarizer, and liquid crystal display device46US 8,465,673 B2FUJIFILM Corporation · 2013
- Polymer blend composed of cellulose acetate and starch acetate and starch used to form fibers, films and plastic materials and a process to prepare said blend38US 5,446,140 AHoechst Celanese Corporation · 1995