A61K 31/715
Polysaccharides, i.e. having more than five saccharide radicals attached to each other
Official title: Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
A61K31/715 (Polysaccharides, i.e. having more than five saccharide radicals attached to each other) appears on 6,103 US grants and 10,416 published applications in this corpus.
Search patents in A61K- Granted patents
- 6,103
- Published applications
- 10,416
- Assignees
- 4,222
- Inventors
- 16,477
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 11 | 0 |
| 1980 | 16 | 0 |
| 1981 | 9 | 0 |
| 1982 | 11 | 0 |
| 1983 | 13 | 0 |
| 1984 | 23 | 0 |
| 1985 | 19 | 0 |
| 1986 | 13 | 0 |
| 1987 | 21 | 0 |
| 1988 | 23 | 0 |
| 1989 | 32 | 0 |
| 1990 | 27 | 0 |
| 1991 | 23 | 0 |
| 1992 | 36 | 0 |
| 1993 | 24 | 0 |
| 1994 | 23 | 0 |
| 1995 | 48 | 0 |
| 1996 | 68 | 0 |
| 1997 | 106 | 0 |
| 1998 | 103 | 0 |
| 1999 | 94 | 0 |
| 2000 | 91 | 0 |
| 2001 | 80 | 47 |
| 2002 | 95 | 168 |
| 2003 | 99 | 281 |
| 2004 | 80 | 355 |
| 2005 | 91 | 381 |
| 2006 | 128 | 439 |
| 2007 | 78 | 430 |
| 2008 | 88 | 296 |
| 2009 | 89 | 350 |
| 2010 | 156 | 380 |
| 2011 | 157 | 385 |
| 2012 | 185 | 388 |
| 2013 | 270 | 451 |
| 2014 | 321 | 494 |
| 2015 | 292 | 493 |
| 2016 | 282 | 494 |
| 2017 | 315 | 480 |
| 2018 | 268 | 449 |
| 2019 | 334 | 510 |
| 2020 | 313 | 501 |
| 2021 | 313 | 515 |
| 2022 | 302 | 508 |
| 2023 | 260 | 491 |
| 2024 | 226 | 423 |
| 2025 | 267 | 359 |
| 2026 | 156 | 348 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 31/726Glycosaminoglycans, i.e. mucopolysaccharides2,061
- A61K 31/716Glucans1,872
- A61K 31/737Sulfated polysaccharides652
- A61K 31/734Alginic acid206
- A61K 31/733Fructosans194
- A61K 31/739Lipopolysaccharides172
- A61K 31/736Glucomannans or galactomannans159
- A61K 31/738Cross-linked polysaccharides153
All 11 subgroupsShow fewer
Recent patents
- Methods for the treatment of cholesterol crystal embolization with cyclodextrins6 Oct 2026US 12,751,966 B2Beren Therapeutics P.B.C.
- Hyperbranched polyglycerol polyglycidyl ether and its use as crosslinker for polysaccharides6 Oct 2026US 12,753,158 B2Biopolimeri S.R.L.
- Surface treatment of contact lens and treatment of ocular discomfort by water soluble polymers and lipids/liposomes22 Sep 2026US 12,740,942 B2Yeda Research and Development Co. Ltd.
- Fish swim bladder-derived heparin-like mucopolysaccharide and methods of making and using the same22 Sep 2026US 12,740,998 B2Guangdong Ocean University
- Eye care composition containing l-ergothioneine, and preparation method therefor and use thereof15 Sep 2026US 12,734,154 B2Gene III Biotechnology Co., Ltd.
- Composition for removing and inhibiting senescent cells, and uses thereof8 Oct 2026US 2026/0306460 A1Lifeceutix Co., Ltd.
- Composition comprising homogeneous polysaccharide or derivative thereof and method of using the same to prevent and/or treat bone loss8 Oct 2026US 2026/0306529 A1
- Novel glycan compounds for age-related macular degeneration8 Oct 2026US 2026/0306530 A1The Regents of the University of California
- Microbiome-based GABA Cream with Chondroitin Sulfate Transdermal Delivery System8 Oct 2026US 2026/0306531 A1
- Combination therapy comprising a composition of mesenchymal stromal cells and hyaluronic acid for use in treatment of osteoarthritis8 Oct 2026US 2026/0306547 A1Stempeutics Research Private Limited
Most cited
By later US patents
- Medical devices and applications of polyhydroxyalkanoate polymers1,636US 6,838,493 B2Metabolix, Inc. · 2005
- Biomaterial drug delivery and surface modification compositions1,362US 7,850,982 B2Tyco Healthcare Group LP · 2010
- Modified hyaluronic acid for use in musculoskeletal tissue repair805US 7,091,191 B2Ethicon, Inc. · 2006
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Biofunctional surface modified ocular implants, surgical instruments, medical devices, prostheses, contact lenses and the like367US 6,387,379 B1University of Florida · 2002