A61L 27/20
Polysaccharides
A61L27/20 (Polysaccharides) appears on 1,383 US grants and 2,343 published applications in this corpus.
Search patents in A61L- Granted patents
- 1,383
- Published applications
- 2,343
- Assignees
- 1,070
- Inventors
- 4,181
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 14 | 0 |
| 1996 | 12 | 0 |
| 1997 | 16 | 0 |
| 1998 | 19 | 0 |
| 1999 | 15 | 0 |
| 2000 | 17 | 0 |
| 2001 | 11 | 6 |
| 2002 | 13 | 27 |
| 2003 | 22 | 22 |
| 2004 | 20 | 36 |
| 2005 | 9 | 30 |
| 2006 | 14 | 36 |
| 2007 | 11 | 54 |
| 2008 | 10 | 60 |
| 2009 | 9 | 45 |
| 2010 | 30 | 72 |
| 2011 | 21 | 60 |
| 2012 | 36 | 75 |
| 2013 | 42 | 90 |
| 2014 | 61 | 87 |
| 2015 | 82 | 110 |
| 2016 | 63 | 153 |
| 2017 | 80 | 146 |
| 2018 | 76 | 138 |
| 2019 | 92 | 154 |
| 2020 | 99 | 155 |
| 2021 | 86 | 156 |
| 2022 | 76 | 129 |
| 2023 | 64 | 123 |
| 2024 | 70 | 151 |
| 2025 | 84 | 111 |
| 2026 | 58 | 117 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Additive manufacturing based on fluid-fluid interface6 Oct 2026US 12,752,492 B2Carnegie Mellon University
- Hydrogel systems for skeletal interfacial tissue regeneration applied to epiphyseal growth plate repair29 Sep 2026US 12,746,258 B2University of Pittsburgh—Of the Commonwealth System of Higher Education
- Hyaluronic acid derivative and use thereof29 Sep 2026US 12,746,306 B2Amtixbio Co., Ltd.
- Medical composition comprising adipose tissue-derived extracellular matrix and method for preparing same22 Sep 2026US 12,741,051 B2L&C Bio Co., Ltd.
- Bioabsorbable medical material15 Sep 2026US 12,734,279 B2Kureha Corporation
- Self-healing hydrogel8 Oct 2026US 2026/0306706 A1Indian Institute of Technology Indore
- Double networked 3d-printed biomaterials8 Oct 2026US 2026/0306707 A1The Brigham and Women S Hospital, Inc.
- Multi-crosslinked gel system and products, preparation methods, and uses thereof1 Oct 2026US 2026/0294814 A1Shanghai Qisheng Biological Preparation Co., Ltd.
- Fatty acid-grafted hyaluronic acid, dermal filler formulations comprising same, process for preparation and use thereof1 Oct 2026US 2026/0295116 A1MERZ PHARMA GmbH & CO. KGaA
- Biological mixture comprising biological cross-linked material, method for skin tissue filling using the same and preparation method thereof1 Oct 2026US 2026/0295118 A1Xeader Technology Co., Ltd.
Most cited
By later US patents
- Reinforced absorbable multilayered fabric for use in tissue repair and regeneration1,399US 7,749,204 B2Ethicon, Inc. · 2010
- Medical implant including a 3D mesh of oxidized cellulose and a collagen sponge1,080US 9,119,898 B2Sofradim Production · 2015
- Medical device intended to come into contact with a patient's tissue and related manufacturing method849US 8,753,664 B2Perouse Medical · 2014
- Injectable or implantable biomaterials for filling or blocking lumens and voids of the body846US 5,752,974 ACollagen Corporation · 1998
- Collagen-polymer conjugates778US 5,162,430 ACollagen Corporation · 1992