A61K 9/5138
Obtained by reactions only involving carbon-to-carbon unsaturated bonds
Official title: {obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates}
A61K9/5138 (Obtained by reactions only involving carbon-to-carbon unsaturated bonds) appears on 529 US grants and 911 published applications in this corpus.
Search patents in A61K- Granted patents
- 529
- Published applications
- 911
- Assignees
- 489
- Inventors
- 1,870
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 5 |
| 2002 | 6 | 8 |
| 2003 | 7 | 14 |
| 2004 | 6 | 23 |
| 2005 | 3 | 32 |
| 2006 | 4 | 26 |
| 2007 | 4 | 19 |
| 2008 | 5 | 25 |
| 2009 | 5 | 22 |
| 2010 | 9 | 34 |
| 2011 | 15 | 50 |
| 2012 | 17 | 24 |
| 2013 | 22 | 37 |
| 2014 | 23 | 57 |
| 2015 | 36 | 46 |
| 2016 | 31 | 57 |
| 2017 | 34 | 43 |
| 2018 | 26 | 48 |
| 2019 | 34 | 53 |
| 2020 | 42 | 61 |
| 2021 | 25 | 40 |
| 2022 | 25 | 49 |
| 2023 | 27 | 43 |
| 2024 | 23 | 31 |
| 2025 | 26 | 30 |
| 2026 | 14 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radiopaque nanoparticles for medical imaging7 Jul 2026US 12,673,121 B2Translational and Fundamental Technologies Institute LLC
- Pharmaceutical composition, and aprepitant injection and freeze-dried powder injection30 Jun 2026US 12,667,577 B2Wisdom Pharmaceutical Co., Ltd
- Stimuli-responsive nanoparticles for biomedical applications16 Jun 2026US 12,653,911 B2The Brigham and Women S Hospital, Inc.
- Functional derivatives of maleimide copolymers for nanodisc production19 May 2026US 12,629,341 B2The Governors of the University of Alberta
- Nanoparticles encapsulating soluble biologics, therapeutics, and imaging agents21 Apr 2026US 12,605,344 B2The Trustees of Princeton University
- Stable polymer-lipid nanoparticle for drug binding and delivery, especially with anticancer properties, and a method for producing stable polymer-lipid nanoparticles carrying drugs, especially with anticancer properties8 Oct 2026US 2026/0306420 A1Bs Biotechna Spolka Akcyjna
- Polymer nanoparticle compositions for non-viral gene delivery1 Oct 2026US 2026/0294832 A1
- Liposome Composition Comprising Farnesol and Method of Use Thereof for Treating Fungal Infection24 Sep 2026US 2026/0283957 A1
- Methods of lyophilizing lipid nanoparticles24 Sep 2026US 2026/0283974 A1Takeda Pharmaceutical Company Limited
- Amphiphilic nanoparticles to target amyloid beta-induced microglial activation10 Sep 2026US 2026/0263373 A1Rutgers, The State University of New Jersey
Most cited
By later US patents
- Biodegradable injectable nanoparticles724US 5,543,158 AMassachusetts Institute of Technology · 1996
- Controlled release powder and process for its preparation660US 5,354,556 AElan Corporation, plc · 1994
- Composition useful for in vivo delivery of biologics and methods employing same369US 5,498,421 AVivorx Pharmaceuticals, Inc. · 1996
- Controlled release powder and process for its preparation333US 4,952,402 AElan Corporation, plc · 1990
- Methods for in vivo delivery of substantially water insoluble pharmacologically active agents and compositions useful therefor289US 5,439,686 AVivorx Pharmaceuticals, Inc. · 1995