A61K 9/1647
Polyesters
Official title: {Polyesters, e.g. poly(lactide-co-glycolide)}
A61K9/1647 (Polyesters) appears on 1,525 US grants and 2,245 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,525
- Published applications
- 2,245
- Assignees
- 871
- Inventors
- 3,593
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 15 | 0 |
| 1994 | 17 | 0 |
| 1995 | 21 | 0 |
| 1996 | 32 | 0 |
| 1997 | 47 | 0 |
| 1998 | 33 | 0 |
| 1999 | 48 | 0 |
| 2000 | 39 | 0 |
| 2001 | 55 | 24 |
| 2002 | 63 | 84 |
| 2003 | 58 | 111 |
| 2004 | 38 | 97 |
| 2005 | 35 | 115 |
| 2006 | 46 | 89 |
| 2007 | 25 | 79 |
| 2008 | 22 | 108 |
| 2009 | 21 | 78 |
| 2010 | 35 | 93 |
| 2011 | 33 | 88 |
| 2012 | 59 | 81 |
| 2013 | 66 | 92 |
| 2014 | 85 | 91 |
| 2015 | 64 | 78 |
| 2016 | 60 | 94 |
| 2017 | 54 | 98 |
| 2018 | 60 | 78 |
| 2019 | 60 | 81 |
| 2020 | 46 | 110 |
| 2021 | 38 | 95 |
| 2022 | 41 | 88 |
| 2023 | 40 | 79 |
| 2024 | 32 | 79 |
| 2025 | 45 | 75 |
| 2026 | 29 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formulation to deter abuse of drugs by smoking22 Sep 2026US 12,740,944 B2Purdue Research Foundation
- Sustained release formulation composition comprising semaglutide or pharmaceutically acceptable salt thereof15 Sep 2026US 12,734,219 B2Peptron, Inc.
- PLGA microparticles, a sustained release formulation thereof and a production method thereof25 Aug 2026US 12,714,673 B2M. Technique Co., Ltd.
- Microsphere formulations comprising nalmefene and methods for making and using the same11 Aug 2026US 12,702,646 B2Emergent Product Development Gaithersburg Inc.
- Microsphere formulations comprising ketamine and methods for making and using the same21 Jul 2026US 12,685,714 B2Oakwood Laboratories, LLC
- Cannabidiol formulations1 Oct 2026US 2026/0294812 A1Dsm IP Assets B.V.
- Injectable, sustained-release microsphere formulations containing rapamycin and/or rapamycin analogs and methods of making and using the formulations1 Oct 2026US 2026/0294877 A1Texas Animal Health Innovations LLC
- Injectable, sustained-release microsphere formulations containing rapamycin and/or rapamycin analogs and methods of making and using the formulations1 Oct 2026US 2026/0294878 A1Texas Animal Health Innovations LLC
- Powder composition comprising a haemostatic agent24 Sep 2026US 2026/0284157 A1Centre National De La Recherche Scientifique
- Peptide conjugated particles24 Sep 2026US 2026/0284162 A1Northwestern University
Most cited
By later US patents
- Polyhydroxyalkanoate compositions having controlled degradation rates1,516US 6,867,248 B1Metabolix, Inc. · 2005
- Particle immobilized coatings and uses thereof1,386US 8,679,454 B2SurModics, Inc. · 2014
- Method for making a bioerodible material for the sustained release of a medicament and the material made from the method1,033US 5,456,917 ACambridge Scientific, Inc. · 1995
- Anti-angiogenic compositions and methods of use968US 5,716,981 AAngiogenesis Technologies, Inc. · 1998
- Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers896US 5,410,016 ABoard of Regents, The University of Texas System · 1995