C08J 2305/08
Chitin
Official title: Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
C08J2305/08 (Chitin) appears on 300 US grants and 533 published applications in this corpus.
Search patents in C08J- Granted patents
- 300
- Published applications
- 533
- Assignees
- 368
- Inventors
- 1,184
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 5 |
| 2004 | 3 | 3 |
| 2005 | 3 | 4 |
| 2006 | 0 | 7 |
| 2007 | 0 | 8 |
| 2008 | 0 | 5 |
| 2009 | 2 | 11 |
| 2010 | 3 | 14 |
| 2011 | 4 | 8 |
| 2012 | 6 | 17 |
| 2013 | 11 | 20 |
| 2014 | 18 | 18 |
| 2015 | 17 | 24 |
| 2016 | 9 | 23 |
| 2017 | 17 | 23 |
| 2018 | 12 | 32 |
| 2019 | 18 | 28 |
| 2020 | 19 | 43 |
| 2021 | 27 | 30 |
| 2022 | 24 | 50 |
| 2023 | 21 | 46 |
| 2024 | 21 | 47 |
| 2025 | 22 | 26 |
| 2026 | 26 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hyaluronic acid derivative and use thereof29 Sep 2026US 12,746,306 B2Amtixbio Co., Ltd.
- Method of synthesis of chitosan derivatives and uses thereof8 Sep 2026US 12,729,250 B2Novochizol SA
- Bioink4 Aug 2026US 12,698,407 B2Tampere University Foundation sr
- Dynamic covalent hydrogels, precursors thereof and uses thereof28 Jul 2026US 12,691,062 B2Centre National De La Recherche Scientifique
- Polymer compositions21 Jul 2026US 12,686,749 B2Oxford Medical Products Limited
- Hemp polymer materials and methods of making same24 Sep 2026US 2026/0286111 A1The Hemp Plastic Company
- Antimicrobial hemp polymer materials and methods of making same24 Sep 2026US 2026/0286112 A1The Hemp Plastic Company
- Adhesion-preventing film17 Sep 2026US 2026/0275053 A1Kureha Corporation
- High concentration hydrogels and related methods10 Sep 2026US 2026/0265466 A1Advanced Aesthetic Technologies, Inc.
- High-strength agricultural foam10 Sep 2026US 2026/0265479 A1Brekland Incorporated
Most cited
By later US patents
- Cross-linking of low and high molecular weight polysaccharides preparation of injectable monophase hydrogels and polysaccharides and hydrogels thus obtained130US 7,741,476 B2Allergan Industrie, SAS · 2010
- Polysaccharide crosslinking, hydrogel preparation, resulting polysaccharide(s) and hydrogel(s), uses thereof105US 6,921,819 B2Laboratoires d'Esthetique Appliquee · 2005
- Composite sponge wound dressing made of β-Chitin and Chitosan and method for producing the same97US 6,693,180 B2China Textile Institute · 2004
- Use of derivatives of chitin soluble in aqueous solutions for preventing adhesions87US 5,093,319 APfizer Hospital Products Group, Inc. · 1992
- Cell-culture and polymer constructs87US 6,378,527 B1Chondros, Inc. · 2002