A61K 49/222
Characterised by a special physical form
Official title: {characterised by a special physical form, e.g. emulsions, liposomes}
A61K49/222 (Characterised by a special physical form) appears on 877 US grants and 992 published applications in this corpus.
Search patents in A61K- Granted patents
- 877
- Published applications
- 992
- Assignees
- 440
- Inventors
- 1,799
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 7 | 0 |
| 1993 | 14 | 0 |
| 1994 | 18 | 0 |
| 1995 | 21 | 0 |
| 1996 | 48 | 0 |
| 1997 | 46 | 0 |
| 1998 | 46 | 0 |
| 1999 | 27 | 0 |
| 2000 | 50 | 0 |
| 2001 | 42 | 21 |
| 2002 | 29 | 38 |
| 2003 | 36 | 52 |
| 2004 | 18 | 38 |
| 2005 | 15 | 57 |
| 2006 | 22 | 30 |
| 2007 | 8 | 26 |
| 2008 | 9 | 29 |
| 2009 | 10 | 28 |
| 2010 | 11 | 28 |
| 2011 | 13 | 33 |
| 2012 | 16 | 34 |
| 2013 | 16 | 39 |
| 2014 | 25 | 47 |
| 2015 | 30 | 53 |
| 2016 | 26 | 46 |
| 2017 | 37 | 30 |
| 2018 | 21 | 52 |
| 2019 | 36 | 44 |
| 2020 | 31 | 50 |
| 2021 | 25 | 54 |
| 2022 | 30 | 41 |
| 2023 | 21 | 34 |
| 2024 | 23 | 33 |
| 2025 | 18 | 29 |
| 2026 | 14 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 49/223Microbubbles, hollow microspheres, free gas bubbles, gas microspheres592
- A61K 49/227Liposomes, lipoprotein vesicles197
- A61K 49/226Solutes, emulsions, suspensions, dispersions, semi-solid forms166
- A61K 49/225Microparticles, microcapsules114
- A61K 49/228Host-guest complexes, clathrates, chelates10
Recent patents
- Method and apparatus for measuring intravascular blood flow using a backscattering contrast6 Oct 2026US 12,751,639 B2The General Hospital Corporation
- Cancer treatment methods using thermotherapy and/or enhanced immunotherapy15 Sep 2026US 12,734,238 B2
- Syringe-based microbubble generator with an aerator25 Aug 2026US 12,714,779 B2Agitated Solutions Inc.
- Microbubble destruction for medical ultrasound imaging18 Aug 2026US 12,708,347 B2Siemens Medical Solutions USA, Inc.
- Stabilized nanobubbles and microbubbles for diagnostic and therapeutic applications23 Jun 2026US 12,661,414 B2Case Western Reserve University
- Ultrasound coupling agent8 Oct 2026US 2026/0306057 A1Sonoclear AS
- Gas-filled microvesicles with perfluoro olefin1 Oct 2026US 2026/0295097 A1Bracco Suisse SA
- Gel compositions and related methods17 Sep 2026US 2026/0273113 A1Boston Scientific Scimed, Inc.
- Compositions and methods of controlling expression of thermogenin (ucp-1) in skeletal muscles10 Sep 2026US 2026/0263560 A1Thermogen Biotherapeutics, LLC
- All-in-one multimodal nanotheranostic platform for image-guided therapy20 Aug 2026US 2026/0241003 A1The Johns Hopkins University
Most cited
By later US patents
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Methods and apparatus for performing diagnostic and therapeutic ultrasound simultaneously662US 5,558,092 AImaRx Pharmaceutical Corp. · 1996
- Diagnosis, removal, or mechanical damaging of tumor using plasmonic nanobubbles513US 10,471,159 B1Masimo Corporation · 2019
- Therapeutic drug delivery systems498US 5,580,575 AImaRx Pharmaceutical Corp. · 1996
- Method for the production of medical-grade lipid-coated microbubbles, paramagnetic labeling of such microbubbles and therapeutic uses of microbubbles492US 5,215,680 ACavitation-Control Technology, Inc. · 1993