A61K 47/6939
The polymer being a polysaccharide
Official title: {the polymer being a polysaccharide, e.g. starch, chitosan, chitin, cellulose or pectin}
A61K47/6939 (The polymer being a polysaccharide) appears on 170 US grants and 313 published applications in this corpus.
Search patents in A61K- Granted patents
- 170
- Published applications
- 313
- Assignees
- 198
- Inventors
- 696
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 4 |
| 2006 | 0 | 4 |
| 2007 | 1 | 4 |
| 2008 | 0 | 4 |
| 2009 | 1 | 2 |
| 2010 | 0 | 5 |
| 2011 | 5 | 11 |
| 2012 | 7 | 11 |
| 2013 | 11 | 13 |
| 2014 | 3 | 20 |
| 2015 | 10 | 17 |
| 2016 | 9 | 14 |
| 2017 | 14 | 18 |
| 2018 | 12 | 25 |
| 2019 | 14 | 22 |
| 2020 | 13 | 13 |
| 2021 | 8 | 30 |
| 2022 | 9 | 24 |
| 2023 | 9 | 23 |
| 2024 | 18 | 17 |
| 2025 | 17 | 15 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and compositions for delivery of a therapeutic agent18 Aug 2026US 12,708,674 B2
- Methods of making and using nanoparticles for treatment of bacterial biofilm28 Jul 2026US 12,691,183 B2Brown University
- Methods of delivering anionic agents in vivo using non-viral nanoparticle-based delivery systems16 Jun 2026US 12,653,905 B2Nanora Pharma Inc.
- Bioactive nanoparticle compositions and methods for making same10 Feb 2026US 12,544,456 B2Aqua Regenerative Therapies LLC
- Bioorthogonal compositions20 Jan 2026US 12,527,874 B2Tambo, Inc.
- Multifunctional hybrid cellulose nanocrystals-gold nanoplatform and use thereof in medicine20 Aug 2026US 2026/0241030 A1Istituto Europeo di Oncologia S.r.l.
- Gold nanozyme comprising glycol chitosan and gold particles, and pharmaceutical composition for preventing or treating inflammatory bowel disease comprising same9 Jul 2026US 2026/0191938 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Gene delivery nanoparticle, and preparation and application thereof2 Jul 2026US 2026/0183247 A1Institute of Radiation Medicine, Chinese Academy of Medical Sciences
- Near-infrared responsive bilirubin composite nanoparticle-loaded periodontal microneedle and preparation method thereof18 Jun 2026US 2026/0166149 A1Stomatological Hospital of ChongQing Medical University
- Nanoparticles for delivery of immunoregulatory materials to t cells14 May 2026US 2026/0130992 A1The Johns Hopkins University
Most cited
By later US patents
- Method of forming hydrogel particles having a controlled size using liposomes94US 5,626,870 AGeorgetown University · 1997
- Nanoparticle and polymer formulations for thyroid hormone analogs, antagonists, and formulations thereof93US 8,668,926 B12014
- Nanoparticles for delivery of active agents83US 8,568,784 B2Morehouse School of Medicine · 2013
- Pharmaceutical composition of nanoparticles68US 8,257,740 B1GP Medical, Inc. · 2012
- Methods and compositions for magnetic resonance imaging comprising superparamagnetic ferromagnetically coupled chromium complexes57US 5,260,050 A1993