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A61K 47/593

Polyesters

Official title: {Polyesters, e.g. PLGA or polylactide-co-glycolide}

A61K47/593 (Polyesters) appears on 379 US grants and 672 published applications in this corpus.

Search patents in A61K

Granted patents: 379
Published applications: 672
Assignees: 319
Inventors: 1,138
Latest grant: 18 Aug 2026

Filings by year

A61K 47/593: granted patents and published applications per publication year
Year	Granted patents	Published applications
1982	1	0
1983	0	0
1984	0	0
1985	2	0
1986	2	0
1987	0	0
1988	1	0
1989	0	0
1990	0	0
1991	0	0
1992	0	0
1993	0	0
1994	0	0
1995	2	0
1996	0	0
1997	2	0
1998	4	0
1999	4	0
2000	3	0
2001	6	4
2002	4	13
2003	9	9
2004	6	11
2005	7	20
2006	9	13
2007	4	22
2008	8	21
2009	7	18
2010	6	24
2011	8	32
2012	18	46
2013	10	35
2014	22	44
2015	29	37
2016	25	50
2017	24	26
2018	29	32
2019	19	30
2020	21	31
2021	16	28
2022	16	31
2023	16	23
2024	12	29
2025	14	26
2026	13	17

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Methods and compositions for treating inflammation18 Aug 2026US 12,708,609 B2University of Bath
Toroidal mixed nanoparticle, method for preparing the same, and method for multifunctional delivery using the same2 Jun 2026US 12,642,865 B2China Medical University
Immolative cell-penetrating complexes for nucleic acid delivery to the lung26 May 2026US 12,636,372 B2The Board of Trustees of the Leland Stanford Junior University
Immolative cell-penetrating complexes for nucleic acid delivery12 May 2026US 12,622,981 B2The Board of Trustees of the Leland Stanford Junior University
Techniques for enhancing the selectivity and efficacy of antimicrobial and anticancer polymer agents14 Apr 2026US 12,599,673 B2Agency for Science, Technology and Research

Most cited

By later US patents