A61K 9/1277
Preparation processes
Official title: Preparation processes; Proliposomes
A61K9/1277 (Preparation processes) appears on 1,035 US grants and 1,374 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,035
- Published applications
- 1,374
- Assignees
- 753
- Inventors
- 2,855
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 15 | 0 |
| 1989 | 13 | 0 |
| 1990 | 21 | 0 |
| 1991 | 24 | 0 |
| 1992 | 18 | 0 |
| 1993 | 20 | 0 |
| 1994 | 13 | 0 |
| 1995 | 10 | 0 |
| 1996 | 20 | 0 |
| 1997 | 15 | 0 |
| 1998 | 39 | 0 |
| 1999 | 24 | 0 |
| 2000 | 28 | 0 |
| 2001 | 20 | 9 |
| 2002 | 17 | 22 |
| 2003 | 16 | 25 |
| 2004 | 14 | 29 |
| 2005 | 9 | 29 |
| 2006 | 9 | 26 |
| 2007 | 10 | 23 |
| 2008 | 5 | 24 |
| 2009 | 4 | 29 |
| 2010 | 6 | 35 |
| 2011 | 13 | 32 |
| 2012 | 16 | 40 |
| 2013 | 20 | 63 |
| 2014 | 27 | 53 |
| 2015 | 28 | 67 |
| 2016 | 25 | 50 |
| 2017 | 59 | 64 |
| 2018 | 42 | 65 |
| 2019 | 34 | 81 |
| 2020 | 55 | 69 |
| 2021 | 42 | 117 |
| 2022 | 62 | 90 |
| 2023 | 31 | 95 |
| 2024 | 59 | 72 |
| 2025 | 63 | 85 |
| 2026 | 49 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Assisted loading of hydrophobic molecules into liposomes6 Oct 2026US 12,751,922 B2University of Connecticut
- Oxazolidinone compounds, liposome compositions comprising oxazolidinone compounds and method of use thereof6 Oct 2026US 12,753,170 B2Akagera Medicines, Inc.
- Nanomaterials29 Sep 2026US 12,746,201 B2Guide Therapeutics, LLC
- Pumpless encapsulation of messenger RNA29 Sep 2026US 12,746,203 B2Translate Bio, Inc.
- Modified liposome for drug delivery, use of liposome for drug delivery, especially with anti-cancer activity, and ways to load liposome with drugs, especially with anti-cancer activity8 Oct 2026US 2026/0306403 A1Bs Biotechna Spolka Akcyjna
- Leveraging lipid-protein interactions to engineer spatial organization in cell-free systems8 Oct 2026US 2026/0306405 A1
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- 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
- Manufacturing of bupivacaine multivesicular liposomes24 Sep 2026US 2026/0283954 A1Pacira Pharmaceuticals, Inc.
Most cited
By later US patents
- Method of encapsulating biologically active materials in lipid vesicles1,201US 4,235,871 A1980
- Liposome extrusion method511US 4,737,323 ALiposome Technology, Inc. · 1988
- Therapeutic drug delivery systems498US 5,580,575 AImaRx Pharmaceutical Corp. · 1996
- Gas and gaseous precursor filled microspheres as topical and subcutaneous delivery vehicles426US 5,733,572 AImaRx Pharmaceutical Corp. · 1998
- Therapeutic delivery systems related applications384US 5,542,935 AImaR.sub.x Pharmaceutical Corp. · 1996