A61K 9/5161
Polysaccharides
Official title: {Polysaccharides, e.g. alginate, chitosan, cellulose derivatives; Cyclodextrin}
A61K9/5161 (Polysaccharides) appears on 697 US grants and 1,161 published applications in this corpus.
Search patents in A61K- Granted patents
- 697
- Published applications
- 1,161
- Assignees
- 648
- Inventors
- 2,618
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 3 |
| 2002 | 4 | 10 |
| 2003 | 9 | 16 |
| 2004 | 4 | 14 |
| 2005 | 4 | 23 |
| 2006 | 4 | 20 |
| 2007 | 5 | 24 |
| 2008 | 7 | 25 |
| 2009 | 8 | 24 |
| 2010 | 8 | 35 |
| 2011 | 35 | 46 |
| 2012 | 36 | 35 |
| 2013 | 28 | 46 |
| 2014 | 27 | 44 |
| 2015 | 32 | 48 |
| 2016 | 22 | 60 |
| 2017 | 42 | 62 |
| 2018 | 31 | 59 |
| 2019 | 55 | 73 |
| 2020 | 34 | 84 |
| 2021 | 35 | 66 |
| 2022 | 40 | 86 |
| 2023 | 46 | 74 |
| 2024 | 36 | 71 |
| 2025 | 51 | 55 |
| 2026 | 28 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polysaccharide encapsulated oxygen nanobubbles6 Oct 2026US 12,751,927 B2The Board of Trustees of the University of Illinois
- Compounds and formulations29 Sep 2026US 12,746,248 B2Pro-Al Medico-Technologies, Inc.
- Method for improving bioavailability of NAD+ derivatives22 Sep 2026US 12,740,966 B2Hoboomlife Bio-Technology (Shenzhen) Co., Ltd.
- Method of synthesis of chitosan derivatives and uses thereof8 Sep 2026US 12,729,250 B2Novochizol SA
- Composition of shelf-stable plasmid dna/polyethyleneimine (pei) particles with defined sizes for viral vector production and method for preparation of the same25 Aug 2026US 12,716,073 B2The Johns Hopkins University
- Oral targeted nano delivery systems containing geniposide and preparation methods thereof8 Oct 2026US 2026/0306417 A1Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
- Antidiabetic pharmaceutical composition1 Oct 2026US 2026/0294823 A1Imam Abdulrahman Bin Faisal University
- Pharmaceutical Composition of Siglec-Binding Agents1 Oct 2026US 2026/0294833 A1Cytodigm, Inc.
- Lipid Nanoparticles and Production Method for Same1 Oct 2026US 2026/0294835 A1Kewpie Corporation
- Gingerol formulation and methods for treating cancer and bacterial infection1 Oct 2026US 2026/0294841 A1University of Tabuk
Most cited
By later US patents
- Anti-angiogenic compositions and methods of use968US 5,716,981 AAngiogenesis Technologies, Inc. · 1998
- Particle-containing complex porous materials721US 8,268,344 B2The Regents of the University of Michigan · 2012
- Controlled release powder and process for its preparation660US 5,354,556 AElan Corporation, plc · 1994
- Anti-angiogenic compositions and methods of use413US 5,886,026 AAngiotech Pharmaceuticals, Inc. · 1999
- Composition useful for in vivo delivery of biologics and methods employing same369US 5,498,421 AVivorx Pharmaceuticals, Inc. · 1996