A61K 47/645
Polycationic or polyanionic oligopeptides, polypeptides or polyamino acids
Official title: {Polycationic or polyanionic oligopeptides, polypeptides or polyamino acids, e.g. polylysine, polyarginine, polyglutamic acid or peptide TAT}
A61K47/645 (Polycationic or polyanionic oligopeptides, polypeptides or polyamino acids) appears on 1,111 US grants and 1,875 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,111
- Published applications
- 1,875
- Assignees
- 805
- Inventors
- 3,278
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 12 | 0 |
| 1998 | 26 | 0 |
| 1999 | 27 | 0 |
| 2000 | 26 | 0 |
| 2001 | 20 | 6 |
| 2002 | 26 | 38 |
| 2003 | 19 | 61 |
| 2004 | 16 | 49 |
| 2005 | 13 | 40 |
| 2006 | 26 | 41 |
| 2007 | 12 | 34 |
| 2008 | 19 | 41 |
| 2009 | 12 | 59 |
| 2010 | 22 | 65 |
| 2011 | 32 | 52 |
| 2012 | 29 | 54 |
| 2013 | 31 | 68 |
| 2014 | 38 | 61 |
| 2015 | 51 | 75 |
| 2016 | 43 | 106 |
| 2017 | 68 | 83 |
| 2018 | 65 | 104 |
| 2019 | 61 | 102 |
| 2020 | 60 | 100 |
| 2021 | 59 | 126 |
| 2022 | 49 | 105 |
| 2023 | 42 | 114 |
| 2024 | 60 | 102 |
| 2025 | 60 | 125 |
| 2026 | 30 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compositions and methods for cancer therapy25 Aug 2026US 12,714,723 B2AIM ImmunoTech Inc.
- Compositions comprising a tweak ligand and methods of using same25 Aug 2026US 12,714,740 B2Children's Hospital Medical Center
- Protein-enclosing polymeric micelle11 Aug 2026US 12,702,718 B2The University of Tokyo
- JNK3 inhibitory peptides4 Aug 2026US 12,698,312 B2Universita' Degli Studi Di Milano
- Compositions and methods of nucleic acid-targeting nucleic acids21 Jul 2026US 12,686,865 B2Caribou Biosciences, Inc.
- Polypeptide adjuvants and uses thereof24 Sep 2026US 2026/0284209 A1Board of Regents, The University of Texas System
- Inhibition of myc using high-density brush polymers10 Sep 2026US 2026/0263607 A1Grove Biopharma, Inc.
- Murine stem cell factor polypeptides, compositions, and methods of use10 Sep 2026US 2026/0263610 A1Elixr Ltd
- Extracellular vesicle comprising a biologically active molecule and a cleavable linker10 Sep 2026US 2026/0263626 A1Lonza Sales AG
- Cationic amphiphilic polypeptide for delivering rna and method for preparing the same27 Aug 2026US 2026/0248932 A1Inha University Research and Business Foundation
Most cited
By later US patents
- Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers896US 5,410,016 ABoard of Regents, The University of Texas System · 1995
- Gels for encapsulation of biological materials587US 5,858,746 ABoard of Regents, The University of Texas System · 1999
- Cationic lipids for intracellular delivery of biologically active molecules586US 5,459,127 AVical Incorporated · 1995
- Cationic lipids for intracellular delivery of biologically active molecules545US 5,264,618 AVical Incorporated · 1993
- Biocompatible microcapsules359US 5,380,536 ABoard of Regents, The University of Texas System · 1995