A61K 9/1272
Comprising non-phosphatidyl surfactants as bilayer-forming substances
Official title: comprising non-phosphatidyl surfactants as bilayer-forming substances, e.g. cationic lipids or non-phosphatidyl liposomes coated or grafted with polymers (lipids as modifying agents {A61K47/543})
A61K9/1272 (Comprising non-phosphatidyl surfactants as bilayer-forming substances) appears on 1,559 US grants and 2,340 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,559
- Published applications
- 2,340
- Assignees
- 982
- Inventors
- 4,343
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 12 | 0 |
| 1989 | 12 | 0 |
| 1990 | 13 | 0 |
| 1991 | 17 | 0 |
| 1992 | 20 | 0 |
| 1993 | 19 | 0 |
| 1994 | 17 | 0 |
| 1995 | 16 | 0 |
| 1996 | 18 | 0 |
| 1997 | 41 | 0 |
| 1998 | 60 | 0 |
| 1999 | 49 | 0 |
| 2000 | 47 | 0 |
| 2001 | 47 | 13 |
| 2002 | 51 | 59 |
| 2003 | 34 | 78 |
| 2004 | 31 | 65 |
| 2005 | 16 | 69 |
| 2006 | 22 | 67 |
| 2007 | 27 | 54 |
| 2008 | 19 | 60 |
| 2009 | 15 | 71 |
| 2010 | 31 | 70 |
| 2011 | 27 | 64 |
| 2012 | 31 | 69 |
| 2013 | 27 | 92 |
| 2014 | 40 | 75 |
| 2015 | 53 | 89 |
| 2016 | 68 | 79 |
| 2017 | 75 | 86 |
| 2018 | 61 | 105 |
| 2019 | 64 | 92 |
| 2020 | 66 | 82 |
| 2021 | 53 | 106 |
| 2022 | 58 | 163 |
| 2023 | 60 | 137 |
| 2024 | 68 | 177 |
| 2025 | 84 | 178 |
| 2026 | 70 | 140 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Medication that protects the intestinal microbiota and their preparation methods and applications6 Oct 2026US 12,751,921 B2University of Science and Technology of China
- Oxazolidinone compounds, liposome compositions comprising oxazolidinone compounds and method of use thereof6 Oct 2026US 12,753,170 B2Akagera Medicines, Inc.
- Double-stranded RNAi agents for targeting and regulating HBV gene expression, and a use thereof6 Oct 2026US 12,753,409 B2Hangzhou Tianlong Pharmaceutical Co., Ltd.
- Nanomaterials29 Sep 2026US 12,746,201 B2Guide Therapeutics, LLC
- Cationic lipid having disulfide bond, lipid membrane structure including same, nucleic acid introduction agent and pharmaceutical composition containing any one of same, method for introducing nucleic acid into cell or target cell, and method for producing cellular pharmaceutical29 Sep 2026US 12,746,202 B2National University Corporation Chiba University
- Steroid-cationic lipid compound and use thereof8 Oct 2026US 2026/0306406 A1Cansino (Shanghai) Biological Research Co., Ltd.
- Process and formulation of lipid nanoparticles8 Oct 2026US 2026/0306584 A1Translate Bio, Inc.
- Lipid nanoparticles for the prevention of tuberculosis or other mycobacterial infections8 Oct 2026US 2026/0306603 A1Akagera Medicines, Inc.
- Targeted lipid nanoparticles for treating central nervous system injuries8 Oct 2026US 2026/0306665 A1Wisconsin Alumni Research Foundation
- Ionizable lipid compound, lipid carrier comprising same, and application1 Oct 2026US 2026/0294810 A1Innovec Biotherapeutics
Most cited
By later US patents
- Delivery of exogenous DNA sequences in a mammal1,218US 5,580,859 AVical Incorporated · 1996
- Induction of a protective immune response in a mammal by injecting a DNA sequence885US 5,589,466 AVical Incorporated · 1996
- N[.omega.,(.omega.-1)-dialkyloxy]- and N-[.omega.,(.omega.-1)-dialkenyloxy]-alk-1-yl-N,N,N-tetrasubstituted ammonium lipids and uses therefor740US 4,897,355 ASyntex (U.S.A.) Inc. · 1990
- Liposomal compositions for enhanced retention of bioactive agents663US 5,595,756 AInex Pharmaceuticals Corporation · 1997
- Controlled release formulations of trophic factors in ganglioside-lipsome vehicle653US 5,073,543 AG. D. Searle & Co. · 1991