C08B 37/003
Chitin, i.e. 2-acetamido-2-deoxy--d-glucan or n-acetyl-beta-1,4-d-glucosamine
Official title: {Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof}
C08B37/003 (Chitin, i.e. 2-acetamido-2-deoxy--d-glucan or n-acetyl-beta-1,4-d-glucosamine) appears on 701 US grants and 869 published applications in this corpus.
Search patents in C08B- Granted patents
- 701
- Published applications
- 869
- Assignees
- 618
- Inventors
- 2,143
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 15 | 0 |
| 1990 | 15 | 0 |
| 1991 | 14 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 17 | 0 |
| 1998 | 17 | 0 |
| 1999 | 13 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 4 |
| 2002 | 10 | 20 |
| 2003 | 17 | 22 |
| 2004 | 10 | 17 |
| 2005 | 7 | 31 |
| 2006 | 15 | 28 |
| 2007 | 6 | 28 |
| 2008 | 7 | 26 |
| 2009 | 9 | 38 |
| 2010 | 14 | 37 |
| 2011 | 8 | 24 |
| 2012 | 22 | 25 |
| 2013 | 32 | 35 |
| 2014 | 32 | 43 |
| 2015 | 22 | 42 |
| 2016 | 27 | 53 |
| 2017 | 29 | 29 |
| 2018 | 29 | 40 |
| 2019 | 35 | 37 |
| 2020 | 15 | 46 |
| 2021 | 31 | 44 |
| 2022 | 27 | 46 |
| 2023 | 28 | 51 |
| 2024 | 36 | 43 |
| 2025 | 26 | 34 |
| 2026 | 16 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of synthesis of chitosan derivatives and uses thereof8 Sep 2026US 12,729,250 B2Novochizol SA
- Chitosan oligosaccharide sulfate and preparation method thereof14 Jul 2026US 12,679,905 B2Jiangxi Normal University
- Hydrophobically modified chitosan compositions2 Jun 2026US 12,643,993 B2Medcura, Inc.
- Chitosan dressing for control of gastrointestinal bleeding26 May 2026US 12,636,402 B2Tricol Biomedical, Inc.
- Method for preparing coated MOFs by self-assembly of intumescent flame retardant26 May 2026US 12,637,620 B2China Academy of Safety Science and Technology
- Method and apparatus of processing a fungal mycelium precursor material into a mycelium product by utilising supercritical fluid27 Aug 2026US 2026/0250489 A1ECCO Sko A/S
- Chitosan nerve guide with adhesion features20 Aug 2026US 2026/0240544 A1
- Compositions and methods for aquatic microsporidian infection20 Aug 2026US 2026/0242795 A1ViAqua Therapeutics Ltd.
- Centrifugally-molded articles and methods13 Aug 2026US 2026/0233436 A1
- Temperature-sensitive degradable gel for treating intrauterine adhesion and preparation method thereof16 Jul 2026US 2026/0199562 A1Xiangya Hospital Central South University
Most cited
By later US patents
- Gels for encapsulation of biological materials587US 5,858,746 ABoard of Regents, The University of Texas System · 1999
- Gels for encapsulation of biological materials267US 5,573,934 ABoard of Regents, The University of Texas System · 1996
- Chitin hydrogels, methods of their production and use245US 6,124,273 AAmerican National Red Cross · 2000
- Delivery systems for pharmaceutical or therapeutic actives193US 4,946,870 AUnion Carbide Chemicals and Plastics Company Inc. · 1990
- Modified polysaccharides having improved absorbent properties and process for the preparation thereof160US 5,550,189 AKimberly-Clark Corporation · 1996