A61K 9/5153
Polyesters
Official title: {Polyesters, e.g. poly(lactide-co-glycolide)}
A61K9/5153 (Polyesters) appears on 829 US grants and 1,683 published applications in this corpus.
Search patents in A61K- Granted patents
- 829
- Published applications
- 1,683
- Assignees
- 623
- Inventors
- 2,815
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 3 |
| 2002 | 8 | 21 |
| 2003 | 14 | 19 |
| 2004 | 7 | 16 |
| 2005 | 3 | 26 |
| 2006 | 6 | 42 |
| 2007 | 6 | 25 |
| 2008 | 5 | 25 |
| 2009 | 7 | 39 |
| 2010 | 8 | 58 |
| 2011 | 14 | 64 |
| 2012 | 27 | 54 |
| 2013 | 42 | 80 |
| 2014 | 49 | 124 |
| 2015 | 48 | 101 |
| 2016 | 60 | 101 |
| 2017 | 64 | 100 |
| 2018 | 59 | 81 |
| 2019 | 63 | 104 |
| 2020 | 64 | 107 |
| 2021 | 51 | 98 |
| 2022 | 45 | 90 |
| 2023 | 41 | 105 |
| 2024 | 27 | 67 |
| 2025 | 38 | 73 |
| 2026 | 27 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Treating vasculature related diseases or disorders using nanoparticles29 Sep 2026US 12,746,212 B2The Regents of the University of California
- Methods and compositions for preventing skin toxicities caused by biological targeted cancer drugs29 Sep 2026US 12,746,219 B2Hadasit Medical Research Services and Development Ltd.
- Compounds and formulations29 Sep 2026US 12,746,248 B2Pro-Al Medico-Technologies, Inc.
- 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
- Methods and compositions for monitoring cellular membranes or cellular membrane coated nanoparticles25 Aug 2026US 12,716,897 B2Cellics Therapeutics, Inc.
- Stable polymer-lipid nanoparticle for drug binding and delivery, especially with anticancer properties, and a method for producing stable polymer-lipid nanoparticles carrying drugs, especially with anticancer properties8 Oct 2026US 2026/0306420 A1Bs Biotechna Spolka Akcyjna
- Preparation of tolerizing nanoparticles for the treatment of primary biliary cholangitis8 Oct 2026US 2026/0306598 A1Cour Pharmaceuticals Development Company, Inc.
- Nanoparticle compositions comprising one or more variants or poly (d,l-lactic-co-glycolic acid)24 Sep 2026US 2026/0283975 A1Københavns Universitet
- Tolerizing immune modifying nanoparticles for myasthenia gravis treatment24 Sep 2026US 2026/0284161 A1Cour Pharmaceuticals Development Company, Inc.
- Peptide conjugated particles24 Sep 2026US 2026/0284162 A1Northwestern University
Most cited
By later US patents
- Anti-angiogenic compositions and methods of use968US 5,716,981 AAngiogenesis Technologies, Inc. · 1998
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Particle-containing complex porous materials721US 8,268,344 B2The Regents of the University of Michigan · 2012
- Nanoparticles and microparticles of non-linear hydrophilic-hydrophobic multiblock copolymers586US 6,007,845 AMassachusetts Institute of Technology · 1999
- Anti-angiogenic compositions and methods of use413US 5,886,026 AAngiotech Pharmaceuticals, Inc. · 1999