A61K 8/736
Chitin
Official title: {Chitin; Chitosan; Derivatives thereof}
A61K8/736 (Chitin) appears on 392 US grants and 627 published applications in this corpus.
Search patents in A61K- Granted patents
- 392
- Published applications
- 627
- Assignees
- 312
- Inventors
- 1,293
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 12 |
| 2002 | 11 | 14 |
| 2003 | 12 | 18 |
| 2004 | 7 | 20 |
| 2005 | 5 | 22 |
| 2006 | 6 | 13 |
| 2007 | 2 | 19 |
| 2008 | 3 | 13 |
| 2009 | 4 | 19 |
| 2010 | 6 | 23 |
| 2011 | 4 | 11 |
| 2012 | 15 | 19 |
| 2013 | 8 | 23 |
| 2014 | 22 | 28 |
| 2015 | 18 | 18 |
| 2016 | 12 | 29 |
| 2017 | 19 | 34 |
| 2018 | 16 | 29 |
| 2019 | 23 | 36 |
| 2020 | 21 | 42 |
| 2021 | 17 | 22 |
| 2022 | 17 | 41 |
| 2023 | 13 | 32 |
| 2024 | 15 | 35 |
| 2025 | 19 | 32 |
| 2026 | 8 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cleaning composition15 Sep 2026US 12,734,120 B2Nutritional Consultants Unlimited, Inc.
- Method of synthesis of chitosan derivatives and uses thereof8 Sep 2026US 12,729,250 B2Novochizol SA
- Sunscreen composition containing biodegradable antimicrobial polymer nanoparticles as ultraviolet filter21 Jul 2026US 12,685,702 B2Tata Consultancy Services Limited
- Coacervate cleansing composition comprising a betaine/glycolipid surfactant system7 Jul 2026US 12,673,016 B2L'oreal
- Coating composition for skin-contacting surface of elastomeric articles and articles containing the same26 May 2026US 12,636,412 B2Allegiance Corporation
- Composition comprising low molecular weight chitosan and glycolipids8 Oct 2026US 2026/0306393 A1L'oreal
- Composition comprising ionically crosslinked high molecular weight chitosan1 Oct 2026US 2026/0294780 A1L'oreal
- Composition with chitosan and nanometric specific surface treated-mineral pigment24 Sep 2026US 2026/0283930 A1L'oreal
- Composition based on chitosan and a specific compound24 Sep 2026US 2026/0283931 A1L'oreal
- W/o composition comprising ionically crosslinked cationic polymer selected from chitosans and polylysines24 Sep 2026US 2026/0283932 A1L'oreal
Most cited
By later US patents
- Fast dissolving orally comsumable films222US 6,596,298 B2Warner-Lambert Company · 2003
- Delivery systems for pharmaceutical or therapeutic actives193US 4,946,870 AUnion Carbide Chemicals and Plastics Company Inc. · 1990
- Crosslinked carboxy polysaccharides154US 5,676,964 AFidia S.p.A. · 1997
- Microcapsules120US 6,534,091 B1Cognis Iberia S. L. · 2003
- Foamable carriers105US 8,722,021 B2Foamix Ltd. · 2014