A61K 49/0476
Particles, beads, capsules, spheres
Official title: {Particles, beads, capsules, spheres}
A61K49/0476 (Particles, beads, capsules, spheres) appears on 115 US grants and 127 published applications in this corpus.
Search patents in A61K- Granted patents
- 115
- Published applications
- 127
- Assignees
- 81
- Inventors
- 304
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 3 |
| 2002 | 5 | 3 |
| 2003 | 4 | 6 |
| 2004 | 1 | 6 |
| 2005 | 1 | 6 |
| 2006 | 3 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 5 |
| 2009 | 0 | 5 |
| 2010 | 1 | 5 |
| 2011 | 2 | 9 |
| 2012 | 5 | 6 |
| 2013 | 2 | 2 |
| 2014 | 3 | 6 |
| 2015 | 7 | 8 |
| 2016 | 2 | 7 |
| 2017 | 2 | 3 |
| 2018 | 4 | 3 |
| 2019 | 7 | 8 |
| 2020 | 4 | 8 |
| 2021 | 5 | 5 |
| 2022 | 2 | 4 |
| 2023 | 5 | 3 |
| 2024 | 3 | 4 |
| 2025 | 2 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bismuth-gadolinium nanoparticles10 Mar 2026US 12,569,560 B2Centre National De La Recherche Scientifique
- Non-degradable embolisation microsphere17 Feb 2026US 12,552,891 B2Guerbet
- Imaging composition comprising porous silicon micro-particles23 Sep 2025US 12,419,974 B2University-Industry Cooperation Group of Kyung Hee University
- Radionuclide-loaded nanoparticles for focal tissue ablation17 Jun 2025US 12,329,831 B2Translational and Fundamental Technologies Institute LLC
- Radiopaque polymers30 Jul 2024US 12,049,525 B2Boston Scientific Medical Device Limited
- Nanoparticles and preparation method16 Jul 2026US 2026/0199392 A1Centre National De La Recherche Scientifique
- Conjugates having antifouling nanoparticles and methods of use9 Jul 2026US 2026/0191997 A1Board of Regents, The University of Texas System
- In vivo crosslinkable hydrogels with gold nanoparticles for medical applications28 May 2026US 2026/0144900 A1Boston Scientific Scimed, Inc.
- Radiopaque crosslinked acrylamide copolymers and uses thereof12 Feb 2026US 2026/0041797 A1Boston Scientific Scimed, Inc.
- Radiopaque monomer and embolisation microspheres comprising same25 Dec 2025US 2025/0387530 A1Centre National de la Recherche Scientifique (CNRS)
Most cited
By later US patents
- Surface modified drug nanoparticles993US 5,145,684 ASterling Drug Inc. · 1992
- Surface modified anticancer nanoparticles469US 5,399,363 AEastman Kodak Company · 1995
- Surface modified NSAID nanoparticles275US 5,552,160 ANanoSystems L.L.C. · 1996
- Method for making uniformly sized particles from water-insoluble organic compounds193US 4,826,689 AUniversity of Rochester · 1989
- Use of tyloxapole as a nanoparticle stabilizer and dispersant183US 5,429,824 AEastman Kodak Company · 1995