C08L 1/12
Cellulose acetate
C08L1/12 (Cellulose acetate) appears on 339 US grants and 544 published applications in this corpus.
Search patents in C08L- Granted patents
- 339
- Published applications
- 544
- Assignees
- 198
- Inventors
- 1,042
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 4 |
| 2002 | 3 | 5 |
| 2003 | 8 | 7 |
| 2004 | 6 | 6 |
| 2005 | 5 | 15 |
| 2006 | 4 | 11 |
| 2007 | 8 | 10 |
| 2008 | 5 | 13 |
| 2009 | 2 | 25 |
| 2010 | 8 | 14 |
| 2011 | 11 | 32 |
| 2012 | 7 | 25 |
| 2013 | 11 | 35 |
| 2014 | 17 | 21 |
| 2015 | 18 | 29 |
| 2016 | 15 | 24 |
| 2017 | 23 | 14 |
| 2018 | 5 | 18 |
| 2019 | 15 | 42 |
| 2020 | 14 | 24 |
| 2021 | 19 | 27 |
| 2022 | 14 | 33 |
| 2023 | 21 | 29 |
| 2024 | 20 | 43 |
| 2025 | 17 | 23 |
| 2026 | 8 | 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
- Resin beads, method for producing resin beads, and product using resin beads1 Sep 2026US 12,723,133 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Cellulose ester compositions derived from recycled Cellulose ester content syngas25 Aug 2026US 12,715,938 B2Eastman Chemical Company
- Biodegradable compositions and articles made from cellulose acetate23 Jun 2026US 12,662,587 B2Eastman Chemical Company
- Method of producing porous body9 Jun 2026US 12,649,838 B2Toyota Jidosha Kabushiki Kaisha
- Cellulose-based resin composition and molded body using the same13 Aug 2026US 2026/0234374 A1NEC Corporation
- Bio-based and compostable elastomeric materials, methods of manufacture and articles and uses thereof30 Jul 2026US 2026/0217907 A1Bioastra Technologies, Inc.
- Photopolymer film, composition for forming photopolymer film, hologram recording medium and optical element16 Jul 2026US 2026/0202793 A1LG Chem.Ltd.
- Foamable cellulose acetate compositions comprising carbon dioxide and a chemical blowing agent and foams formed therefrom2 Jul 2026US 2026/0184872 A1Eastman Chemical Company
- Particle and resin composition25 Jun 2026US 2026/0176437 A1FUJIFILM Business Innovation Corp.
Most cited
By later US patents
- Biodegradable resin compositions159US 6,669,771 B2Allmighty Co., Ltd. · 2003
- Cellulose acetate and starch based biodegradable injection molded plastics compositions and methods of manufacture102US 5,288,318 AThe United States of America as represented by the Secretary of the Army · 1994
- Water soluble cellulose acetate composition having improved processability and tensile properties96US 4,983,730 AHoechst Celanese Corporation · 1991
- Surface-modified cellulose microfibrils, method for making the same, and use thereof as a filler in composite materials94US 6,117,545 ARhodia Chimie · 2000
- Molded article of biodegradable cellulose acetate and filter plug for smoking article79US 6,571,802 B1Japan Tobacco Inc. · 2003