C08J 2301/08
Cellulose derivatives
C08J2301/08 (Cellulose derivatives) appears on 684 US grants and 1,014 published applications in this corpus.
Search patents in C08J- Granted patents
- 684
- Published applications
- 1,014
- Assignees
- 368
- Inventors
- 1,947
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 6 |
| 2002 | 3 | 6 |
| 2003 | 8 | 14 |
| 2004 | 4 | 17 |
| 2005 | 11 | 26 |
| 2006 | 12 | 37 |
| 2007 | 7 | 34 |
| 2008 | 12 | 52 |
| 2009 | 12 | 70 |
| 2010 | 21 | 48 |
| 2011 | 24 | 36 |
| 2012 | 31 | 47 |
| 2013 | 26 | 36 |
| 2014 | 26 | 36 |
| 2015 | 32 | 50 |
| 2016 | 36 | 41 |
| 2017 | 24 | 35 |
| 2018 | 28 | 52 |
| 2019 | 27 | 45 |
| 2020 | 31 | 46 |
| 2021 | 28 | 39 |
| 2022 | 22 | 49 |
| 2023 | 34 | 57 |
| 2024 | 38 | 62 |
| 2025 | 33 | 39 |
| 2026 | 27 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08J 2301/10Esters of organic acidsIndexing code394
- C08J 2301/26Cellulose ethersIndexing code149
- C08J 2301/14Mixed estersIndexing code81
- C08J 2301/16Esters of inorganic acidsIndexing code21
- C08J 2301/22Cellulose xanthateIndexing code19
- C08J 2301/32Cellulose ether-estersIndexing code9
- C08J 2301/20Esters of both organic acids and inorganic acidsIndexing code0
Recent patents
- Biodegradable compositions and articles made from cellulose acetate29 Sep 2026US 12,747,333 B2Eastman Chemical Company
- Instrinsically antimicrobial porosic matrix composites and method of manufacture thereof15 Sep 2026US 12,733,637 B2
- Cellulose particles15 Sep 2026US 12,735,557 B2FUJIFILM Business Innovation Corp.
- Resin beads, method for producing resin beads, and product using resin beads1 Sep 2026US 12,723,133 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Optical film, display device, and composition for forming colored layer18 Aug 2026US 12,710,566 B2Toppan Inc.
- 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 water recovery and recycle17 Sep 2026US 2026/0275058 A1Eastman Chemical Company
- Esterase and methods of use, thereof17 Sep 2026US 2026/0275309 A1Danisco US Inc.
Most cited
By later US patents
- Contact lens with a hydrophilic, polyelectrolyte complex coating and method for forming same124US 4,168,112 APolymer Technology Corporation · 1979
- Enteric coating for pharmaceutical dosage forms123US 4,518,433 AFMC Corporation · 1985
- Ionic ophthalmic solutions118US 4,321,261 APolymer Technology Corporation · 1982
- Cellulose acetate propionate96US 5,977,347 ADaicel Chemical Industries, Ltd. · 1999
- Method of manufacture of cellulose ester film92US 5,219,510 AEastman Kodak Company · 1993