A61K 9/2086
Layered tablets
Official title: {Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat (active cores with a complete drug-free outer coat A61K9/28)}
A61K9/2086 (Layered tablets) appears on 1,588 US grants and 2,933 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,588
- Published applications
- 2,933
- Assignees
- 845
- Inventors
- 3,812
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 17 | 0 |
| 1998 | 16 | 0 |
| 1999 | 14 | 0 |
| 2000 | 22 | 0 |
| 2001 | 36 | 19 |
| 2002 | 28 | 61 |
| 2003 | 39 | 88 |
| 2004 | 29 | 105 |
| 2005 | 18 | 110 |
| 2006 | 18 | 86 |
| 2007 | 17 | 101 |
| 2008 | 17 | 123 |
| 2009 | 17 | 99 |
| 2010 | 37 | 156 |
| 2011 | 40 | 149 |
| 2012 | 60 | 117 |
| 2013 | 75 | 137 |
| 2014 | 115 | 160 |
| 2015 | 94 | 165 |
| 2016 | 93 | 171 |
| 2017 | 109 | 151 |
| 2018 | 73 | 110 |
| 2019 | 74 | 116 |
| 2020 | 86 | 131 |
| 2021 | 82 | 111 |
| 2022 | 59 | 102 |
| 2023 | 62 | 90 |
| 2024 | 59 | 100 |
| 2025 | 50 | 97 |
| 2026 | 39 | 78 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Treatment of agitation associated with Alzheimer's disease with a combination of bupropion and dextromethorphan22 Sep 2026US 12,740,949 B2Antecip Bioventures II LLC
- Delayed release compositions22 Sep 2026US 12,740,951 B2Amneal Complex Products Research LLC
- Pharmaceutical composition comprising combination of sitagliptin and empagliflozin15 Sep 2026US 12,734,188 B2Unison Pharmaceuticals Pvt. Ltd.
- Pharmaceutical composite formulation comprising proton pump inhibitor and antacid, and method for preparing same18 Aug 2026US 12,708,618 B2Hanmi Pharm. Co., Ltd.
- Ion-exchange composition with water-soluble mucoadhesive polymers11 Aug 2026US 12,702,643 B2Fertin Pharma A/S
- Compounds and combinations thereof for treating neurological and psychiatric conditions8 Oct 2026US 2026/0306426 A1Antecip Bioventures II LLC
- Pharmaceutical compositions comprising bupropion and cysteine8 Oct 2026US 2026/0306637 A1Antecip Bioventures II LLC
- Novel 3d printing concept for pharmaceutical dosage forms via selective laser sintering1 Oct 2026US 2026/0294742 A1Merck Patent GmbH
- Pharmaceutical compositions comprising bupropion and cysteine1 Oct 2026US 2026/0295051 A1Antecip Bioventures II LLC
- Bupropion as a modulator of drug activity17 Sep 2026US 2026/0272856 A1Antecip Bioventures II LLC
Most cited
By later US patents
- Abuse resistant tablets343US 6,309,668 B1Aventis Pharma S.A. · 2001
- Controlled release hydrocodone formulations336US 6,733,783 B2Euro-Celtique S. A. · 2004
- Slow-releasing medical preparation to be administered by adhering to a wet mucous surface310US 4,292,299 ATeijin Limited · 1981
- Frozen piercing implements and methods for piercing a substrate284US 8,784,385 B2The Invention Science Fund I, LLC · 2014
- Methods and devices for providing prolonged drug therapy267US 6,919,373 B1Alza Corporation · 2005