A61K 9/51
Nanocapsules
Official title: Nanocapsules; {Nanoparticles; (nanotubes A61K9/0092; polymeric micelles A61K9/1075; polymersomes A61K9/1273; pure drug nanoparticles A61K9/14; drug nanoparticles with adsorbed surface modifiers A61K9/141; conjugates, e.g. between drug and non-active nanoparticles, A61K47/50; preparations for in vivo diagnosis A61K49/00; with radioactive substances A61K51/00)}
A61K9/51 (Nanocapsules) appears on 4,360 US grants and 9,267 published applications in this corpus.
Search patents in A61K- Granted patents
- 4,360
- Published applications
- 9,267
- Assignees
- 2,981
- Inventors
- 16,427
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 23 | 0 |
| 1998 | 21 | 0 |
| 1999 | 33 | 0 |
| 2000 | 24 | 0 |
| 2001 | 32 | 12 |
| 2002 | 27 | 49 |
| 2003 | 36 | 84 |
| 2004 | 23 | 84 |
| 2005 | 15 | 91 |
| 2006 | 21 | 130 |
| 2007 | 21 | 122 |
| 2008 | 31 | 146 |
| 2009 | 30 | 148 |
| 2010 | 48 | 237 |
| 2011 | 82 | 238 |
| 2012 | 103 | 233 |
| 2013 | 143 | 288 |
| 2014 | 157 | 364 |
| 2015 | 202 | 351 |
| 2016 | 238 | 440 |
| 2017 | 265 | 437 |
| 2018 | 235 | 432 |
| 2019 | 331 | 536 |
| 2020 | 293 | 561 |
| 2021 | 284 | 602 |
| 2022 | 305 | 660 |
| 2023 | 310 | 704 |
| 2024 | 329 | 807 |
| 2025 | 368 | 808 |
| 2026 | 255 | 703 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polysaccharide encapsulated oxygen nanobubbles6 Oct 2026US 12,751,927 B2The Board of Trustees of the University of Illinois
- Engineered cells and uses thereof6 Oct 2026US 12,751,929 B2Ohio State Innovation Foundation
- Cell-receptor targeted exosomes6 Oct 2026US 12,751,930 B2City of Hope
- Lipid nanoparticles comprising sterols and mRNA6 Oct 2026US 12,751,999 B2eTheRNA Immunitherapies NV
- Mutant influenza B/Victoria lineage virus hemagglutinin proteins6 Oct 2026US 12,752,001 B2ModernaTX, Inc.
- Steroid-cationic lipid compound and use thereof8 Oct 2026US 2026/0306406 A1Cansino (Shanghai) Biological Research Co., Ltd.
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- Oral targeted nano delivery systems containing geniposide and preparation methods thereof8 Oct 2026US 2026/0306417 A1Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
- Silica-based nanoparticles for sustained release of hydrophobic drug, preparation method therefor, and transdermal drug delivery system comprising same8 Oct 2026US 2026/0306418 A1Mpios Inc.
- Lipid nanoparticle for delivering nucleic acid drug, and preparation method therefor and use thereof8 Oct 2026US 2026/0306419 A1Cansino (Shanghai) Biological Research Co., Ltd.
Most cited
By later US patents
- Absorbent articles comprising nanoparticles1,110US 7,988,779 B2McNeil-PPC, Inc. · 2011
- 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
- Controlled release powder and process for its preparation660US 5,354,556 AElan Corporation, plc · 1994