A61K 31/47
Quinolines
Official title: Quinolines; Isoquinolines
A61K31/47 (Quinolines) appears on 13,677 US grants and 24,852 published applications in this corpus.
Search patents in A61K- Granted patents
- 13,677
- Published applications
- 24,852
- Assignees
- 6,542
- Inventors
- 39,469
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 23 | 0 |
| 1978 | 13 | 0 |
| 1979 | 12 | 0 |
| 1980 | 21 | 0 |
| 1981 | 19 | 0 |
| 1982 | 22 | 0 |
| 1983 | 27 | 0 |
| 1984 | 26 | 0 |
| 1985 | 22 | 0 |
| 1986 | 29 | 0 |
| 1987 | 38 | 0 |
| 1988 | 40 | 0 |
| 1989 | 52 | 0 |
| 1990 | 53 | 0 |
| 1991 | 44 | 0 |
| 1992 | 41 | 0 |
| 1993 | 69 | 0 |
| 1994 | 50 | 0 |
| 1995 | 74 | 0 |
| 1996 | 100 | 0 |
| 1997 | 167 | 0 |
| 1998 | 151 | 0 |
| 1999 | 211 | 0 |
| 2000 | 151 | 0 |
| 2001 | 202 | 87 |
| 2002 | 223 | 385 |
| 2003 | 227 | 676 |
| 2004 | 196 | 716 |
| 2005 | 168 | 686 |
| 2006 | 212 | 755 |
| 2007 | 181 | 692 |
| 2008 | 168 | 581 |
| 2009 | 165 | 625 |
| 2010 | 253 | 799 |
| 2011 | 345 | 759 |
| 2012 | 373 | 727 |
| 2013 | 524 | 985 |
| 2014 | 662 | 1273 |
| 2015 | 743 | 1404 |
| 2016 | 801 | 1429 |
| 2017 | 868 | 1375 |
| 2018 | 773 | 1165 |
| 2019 | 789 | 1270 |
| 2020 | 780 | 1244 |
| 2021 | 758 | 1366 |
| 2022 | 676 | 1303 |
| 2023 | 579 | 1307 |
| 2024 | 544 | 1251 |
| 2025 | 597 | 1106 |
| 2026 | 391 | 886 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 31/4738Ortho- or peri-condensed with heterocyclic ring systems3,101
- A61K 31/485Morphinan derivatives3,016
- A61K 31/4709Non-condensed quinolines and containing further heterocyclic rings2,600
- A61K 31/472Non-condensed isoquinolines1,550
- A61K 31/473Ortho- or peri-condensed with carbocyclic ring systems870
- A61K 31/475Having an indole ring857
- A61K 31/47064-aminoquinolines482
- A61K 31/48Ergoline derivatives445
Recent patents
- Assisted loading of hydrophobic molecules into liposomes6 Oct 2026US 12,751,922 B2University of Connecticut
- Methods and compositions for treating fungal infections6 Oct 2026US 12,751,944 B2Neoculi Pty Ltd
- Quinazoline derivative, or preparation method therefor and use thereof6 Oct 2026US 12,751,952 B2Shanghai Aryl Pharmtech Co., Ltd.
- Spirotricycle RIPK1 inhibitors and methods of uses thereof6 Oct 2026US 12,753,190 B2Merck Sharp & Dohme Corp.
- API stability in softgels29 Sep 2026US 12,746,206 B2R.P. Scherer Technologies, LLC
- 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
- Compounds and combinations thereof for treating neurological and psychiatric conditions8 Oct 2026US 2026/0306426 A1Antecip Bioventures II LLC
- Composition for removing and inhibiting senescent cells, and uses thereof8 Oct 2026US 2026/0306460 A1Lifeceutix Co., Ltd.
- Antibacterial compound pbt28 Oct 2026US 2026/0306476 A1Griffith University
- Inhaled statins as bronchodilators to improve lung function in respiratory diseases8 Oct 2026US 2026/0306477 A1Beth Israel Deaconess Medical Center, Inc.
Most cited
By later US patents
- Wound dressing with conformable elastomeric wound contact layer1,263US 5,445,604 ASmith and Nephew Associated Companies Limited · 1995
- Solid carriers for improved delivery of active ingredients in pharmaceutical compositions930US 6,248,363 B1Lipocine Inc. · 2001
- Methods for treating multiple myeloma with 3-(4-amino-1-oxo-1,3-dihydro-isoindol-2-yl)-piperidine-2,6-dione after stem cell transplantation733US 9,101,621 B2Celgene Corporation · 2015
- Solid carriers for improved delivery of active ingredients in pharmaceutical compositions684US 6,923,988 B2Lipocine Inc. · 2005
- Solid carriers for improved delivery of hydrophobic active ingredients in pharmaceutical compositions616US 6,569,463 B2Lipocine Inc. · 2003