A61K 31/54
Having six-membered rings with at least one nitrogen and one sulfur as
Official title: having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame
A61K31/54 (Having six-membered rings with at least one nitrogen and one sulfur as) appears on 3,952 US grants and 6,151 published applications in this corpus.
Search patents in A61K- Granted patents
- 3,952
- Published applications
- 6,151
- Assignees
- 2,311
- Inventors
- 12,691
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 25 | 0 |
| 1978 | 32 | 0 |
| 1979 | 23 | 0 |
| 1980 | 18 | 0 |
| 1981 | 23 | 0 |
| 1982 | 14 | 0 |
| 1983 | 16 | 0 |
| 1984 | 21 | 0 |
| 1985 | 16 | 0 |
| 1986 | 18 | 0 |
| 1987 | 17 | 0 |
| 1988 | 25 | 0 |
| 1989 | 25 | 0 |
| 1990 | 24 | 0 |
| 1991 | 18 | 0 |
| 1992 | 20 | 0 |
| 1993 | 20 | 0 |
| 1994 | 16 | 0 |
| 1995 | 15 | 0 |
| 1996 | 26 | 0 |
| 1997 | 49 | 0 |
| 1998 | 54 | 0 |
| 1999 | 77 | 0 |
| 2000 | 59 | 0 |
| 2001 | 54 | 16 |
| 2002 | 70 | 127 |
| 2003 | 68 | 169 |
| 2004 | 58 | 203 |
| 2005 | 60 | 181 |
| 2006 | 55 | 164 |
| 2007 | 37 | 179 |
| 2008 | 52 | 158 |
| 2009 | 56 | 159 |
| 2010 | 64 | 204 |
| 2011 | 67 | 181 |
| 2012 | 110 | 183 |
| 2013 | 139 | 306 |
| 2014 | 179 | 329 |
| 2015 | 232 | 369 |
| 2016 | 242 | 362 |
| 2017 | 275 | 372 |
| 2018 | 220 | 294 |
| 2019 | 245 | 269 |
| 2020 | 206 | 305 |
| 2021 | 154 | 282 |
| 2022 | 132 | 256 |
| 2023 | 129 | 254 |
| 2024 | 122 | 318 |
| 2025 | 129 | 257 |
| 2026 | 109 | 254 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61K 31/5415Ortho- or peri-condensed with carbocyclic ring systems1,074
- A61K 31/542Ortho- or peri-condensed with heterocyclic ring systems1,055
- A61K 31/541Non-condensed thiazines containing further heterocyclic rings987
- A61K 31/549Having two or more nitrogen atoms in the same ring325
- A61K 31/548Having two or more sulfur atoms in the same ring20
- A61K 31/547Spiro-condensed or forming part of bridged ring systems17
Recent patents
- Prolonged-release pharmaceutical composition for oral administration of sultiame6 Oct 2026US 12,751,928 B2Advicenne
- MRGX receptor antagonists6 Oct 2026US 12,751,953 B2Katholieke Universiteit Leuven of KU Leuven Research & Development
- Ionic liquids for transdermal drug delivery6 Oct 2026US 12,752,009 B2Arizona Board of Regents
- Sirt6 activators6 Oct 2026US 12,753,180 B2Board of Regents, The University of Texas System
- Combinatory treatment29 Sep 2026US 12,746,216 B2Arivin Therapeutics Oy
- Guanidinylated Amphiphilic Tobramycin Derivates and B-Lactam/B-Lactamase Inhibitor Combinations for Treatment of Pseudomonas Aeruginosa Infections8 Oct 2026US 2026/0306524 A1
- Pharmaceutical compositions comprising meloxicam8 Oct 2026US 2026/0306635 A1Axsome Therapeutics, Inc.
- Crystalline forms of evenamide8 Oct 2026US 2026/0308115 A1Newron Pharmaceuticals S.p.A.
- Ketamine for the treatment of menstrually related symptoms1 Oct 2026US 2026/0294843 A1
- Cell proliferation modulators and uses thereof1 Oct 2026US 2026/0294925 A1Kumquat Biosciences Inc.
Most cited
By later US patents
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Pharmaceutical and cosmetic carrier or composition for topical application284US 6,911,211 B2Foamix Ltd. · 2005
- Inhibiting the development of tolerance to and/or dependence on a narcotic addictive substance277US 5,321,012 AVirginia Commonwealth University Medical College · 1994
- Formulations and methods for providing prolonged local anesthesia261US 5,942,241 AEuro-Celtique S. A. · 1999
- Methods of diagnosing or treating irritable bowel syndrome and other disorders caused by small intestinal bacterial overgrowth243US 6,861,053 B1Cedars-Sinai Medical Center · 2005