C09D 105/08
Chitin
Official title: Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
C09D105/08 (Chitin) appears on 126 US grants and 177 published applications in this corpus.
Search patents in C09D- Granted patents
- 126
- Published applications
- 177
- Assignees
- 133
- Inventors
- 442
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 4 |
| 2003 | 4 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 5 |
| 2007 | 2 | 3 |
| 2008 | 0 | 4 |
| 2009 | 1 | 6 |
| 2010 | 2 | 6 |
| 2011 | 3 | 7 |
| 2012 | 5 | 12 |
| 2013 | 3 | 5 |
| 2014 | 5 | 4 |
| 2015 | 5 | 7 |
| 2016 | 9 | 12 |
| 2017 | 6 | 7 |
| 2018 | 8 | 14 |
| 2019 | 8 | 9 |
| 2020 | 6 | 7 |
| 2021 | 6 | 6 |
| 2022 | 4 | 13 |
| 2023 | 6 | 11 |
| 2024 | 6 | 15 |
| 2025 | 11 | 8 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymer compositions and coatings22 Sep 2026US 12,742,090 B2The Penn State Research Foundation
- Method for preparing multifunctional environmental friendly coating for waterproof and oil-proof food packaging papers by one step method and application thereof15 Sep 2026US 12,735,842 B2Zhejiang University of Science and Technology
- Composite biomaterials18 Aug 2026US 12,708,699 B2Spiderwort Biotechnologies Inc.
- Bioink4 Aug 2026US 12,698,407 B2Tampere University Foundation sr
- Grafted polymer and use thereof16 Jun 2026US 12,655,286 B2Bausch + Lomb Ireland Limited
- Airway tube device20 Aug 2026US 2026/0241127 A1The Provost, Fellows, Scholars and Other Members of Board of Trinity College Dublin
- Coating composition for vehicle with improved viscosity and gas barrier properties25 Jun 2026US 2026/0176474 A1Hyundai Motor Company
- Functionalized and crosslinked polymers11 Jun 2026US 2026/0159613 A1Pmidg, LLC
- Antimicrobial compositions, including antimicrobial hydrogels, effective against mature biofilms11 Dec 2025US 2025/0374925 A1CorMedix Inc.
- Functionalized and crosslinked polymers18 Sep 2025US 2025/0289909 A1Pmidg, LLC
Most cited
By later US patents
- Thromboresistant surface treatment for biomaterials419US 5,578,073 ARamot - Tel-Aviv University · 1996
- Amphipathic coating for modulating cellular adhesion composition and methods73US 6,342,591 B12002
- Chitin derived powder in sterile surgical element package36US 4,068,757 AAmerican Cyanamid Company · 1978
- Nucleic acid coating compositions and methods33US 6,596,699 B2BioSurface Engineering Technologies, Inc. · 2003
- Biodegradable laminated films fabricated from pectin and chitosan27US 5,919,574 AThe United States of America as represented by the Secretary of Agriculture · 1999