A61K 51/1244
Microparticles or nanoparticles
Official title: {microparticles or nanoparticles, e.g. polymeric nanoparticles}
A61K51/1244 (Microparticles or nanoparticles) appears on 279 US grants and 554 published applications in this corpus.
Search patents in A61K- Granted patents
- 279
- Published applications
- 554
- Assignees
- 262
- Inventors
- 1,104
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 5 |
| 2003 | 1 | 6 |
| 2004 | 1 | 10 |
| 2005 | 2 | 3 |
| 2006 | 1 | 6 |
| 2007 | 1 | 13 |
| 2008 | 3 | 16 |
| 2009 | 1 | 18 |
| 2010 | 2 | 43 |
| 2011 | 3 | 21 |
| 2012 | 12 | 17 |
| 2013 | 18 | 23 |
| 2014 | 23 | 30 |
| 2015 | 19 | 40 |
| 2016 | 20 | 24 |
| 2017 | 22 | 27 |
| 2018 | 22 | 28 |
| 2019 | 14 | 27 |
| 2020 | 20 | 33 |
| 2021 | 20 | 25 |
| 2022 | 7 | 28 |
| 2023 | 11 | 34 |
| 2024 | 16 | 26 |
| 2025 | 10 | 34 |
| 2026 | 13 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Treatment approach by targeted delivery of bioactive molecules bio modulated ceramics18 Aug 2026US 12,708,603 B2Moroxite AB
- Functionalized silica nanorings, methods of making same, and uses thereof11 Aug 2026US 12,703,637 B2Cornell University
- Implants and biodegradable tissue markers12 May 2026US 12,622,982 B2Incept, LLC
- Composition of radioactive and non-radioactive microparticles17 Mar 2026US 12,576,171 B2ABK Biomedical Incorporated
- Imaging systems and methods for particle-driven, knowledge-based, and predictive cancer radiogenomics24 Feb 2026US 12,558,438 B2Cornell University
- Methods of Treating and Preventing Cancer with Alternating Electric Fields, Radioactive Particles, and Systemic Therapy24 Sep 2026US 2026/0284431 A1Novocure GmbH
- Gel compositions and related methods17 Sep 2026US 2026/0273113 A1Boston Scientific Scimed, Inc.
- Inhibitory Peptides for the Diagnostic and/or Treatment of Tauopathies27 Aug 2026US 2026/0248877 A1École des Hautes Études en Santé Publique
- Alpha-emitting radionuclides for use in the treatment of peritoneal cancer30 Jul 2026US 2026/0216382 A1Oncoinvent AS
- Conjugates having antifouling nanoparticles and methods of use9 Jul 2026US 2026/0191997 A1Board of Regents, The University of Texas System
Most cited
By later US patents
- Particle immobilized coatings and uses thereof1,386US 8,679,454 B2SurModics, Inc. · 2014
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Magnetic iron-dextran microspheres466US 4,452,773 ACanadian Patents and Development Limited · 1984
- Nanoparticles and microparticles of non-linear hydrophilic-hydrophobic multiblock copolymers257US 5,578,325 AMassachusetts Institute of Technology · 1996
- Biodegradable injectable particles for imaging247US 5,565,215 AMassachusettes Institute of Technology · 1996