A61L 15/28
Polysaccharides or their derivatives
Official title: Polysaccharides or their derivatives {(A61L15/225 takes precedence)}
A61L15/28 (Polysaccharides or their derivatives) appears on 1,261 US grants and 1,499 published applications in this corpus.
Search patents in A61L- Granted patents
- 1,261
- Published applications
- 1,499
- Assignees
- 754
- Inventors
- 3,089
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 18 | 0 |
| 1979 | 5 | 0 |
| 1980 | 15 | 0 |
| 1981 | 16 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 8 | 0 |
| 1989 | 16 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 14 | 0 |
| 1994 | 8 | 0 |
| 1995 | 18 | 0 |
| 1996 | 27 | 0 |
| 1997 | 32 | 0 |
| 1998 | 44 | 0 |
| 1999 | 24 | 0 |
| 2000 | 29 | 0 |
| 2001 | 28 | 6 |
| 2002 | 37 | 35 |
| 2003 | 36 | 50 |
| 2004 | 28 | 53 |
| 2005 | 18 | 41 |
| 2006 | 14 | 41 |
| 2007 | 8 | 54 |
| 2008 | 4 | 41 |
| 2009 | 12 | 40 |
| 2010 | 24 | 43 |
| 2011 | 17 | 45 |
| 2012 | 30 | 56 |
| 2013 | 38 | 63 |
| 2014 | 48 | 70 |
| 2015 | 43 | 78 |
| 2016 | 50 | 116 |
| 2017 | 53 | 79 |
| 2018 | 37 | 84 |
| 2019 | 51 | 77 |
| 2020 | 49 | 61 |
| 2021 | 48 | 89 |
| 2022 | 51 | 75 |
| 2023 | 40 | 65 |
| 2024 | 55 | 51 |
| 2025 | 45 | 53 |
| 2026 | 30 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Personal hygiene product22 Sep 2026US 12,740,899 B2Croda International PLC
- Medical composition comprising adipose tissue-derived extracellular matrix and method for preparing same22 Sep 2026US 12,741,051 B2L&C Bio Co., Ltd.
- Method for manufacturing hemostatic medical material15 Sep 2026US 12,734,267 B2
- Expandable hemostatic tablets comprising oxidized regenerated cellulose15 Sep 2026US 12,734,268 B2Ethicon, Inc.
- Bioabsorbable medical material15 Sep 2026US 12,734,279 B2Kureha Corporation
- Incision dressing8 Oct 2026US 2026/0306302 A1DeRoyal Industries, Inc.
- Flushable absorbent pad and combination with reusable chassis24 Sep 2026US 2026/0283865 A1W. Pelz GmbH & Co. KG
- Absorbable composition for regeneration of skin lesions17 Sep 2026US 2026/0273126 A1
- Wound dressings with adhesive borders10 Sep 2026US 2026/0263284 A1Plastod SpA
- Wound dressing10 Sep 2026US 2026/0263651 A1University of Sunderland
Most cited
By later US patents
- Nanostructure-enhanced platelet binding and hemostatic structures1,405US 8,319,002 B2Nanosys, Inc. · 2012
- Reinforced absorbable multilayered fabric for use in tissue repair and regeneration1,399US 7,749,204 B2Ethicon, Inc. · 2010
- Dried hydrogel from hydrophilic-hygroscopic polymer1,241US 5,409,703 ACarrington Laboratories, Inc. · 1995
- Wound dressing and method for controlling severe, life-threatening bleeding1,098US 7,371,403 B2Providence Health System-Oregon · 2008
- Absorbent structure containing individualized, polycarboxylic acid crosslinked wood pulp cellulose fibers694US 5,137,537 AThe Procter & Gamble Cellulose Company · 1992