A61K 9/209
Containing drug in at least two layers or in the core and
Official title: {containing drug in at least two layers or in the core and in at least one outer layer}
A61K9/209 (Containing drug in at least two layers or in the core and) appears on 1,189 US grants and 2,212 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,189
- Published applications
- 2,212
- Assignees
- 685
- Inventors
- 3,041
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 13 | 0 |
| 1998 | 10 | 0 |
| 1999 | 12 | 0 |
| 2000 | 16 | 0 |
| 2001 | 27 | 16 |
| 2002 | 24 | 48 |
| 2003 | 31 | 74 |
| 2004 | 25 | 94 |
| 2005 | 16 | 90 |
| 2006 | 14 | 76 |
| 2007 | 16 | 79 |
| 2008 | 15 | 96 |
| 2009 | 14 | 76 |
| 2010 | 24 | 114 |
| 2011 | 34 | 117 |
| 2012 | 48 | 92 |
| 2013 | 55 | 103 |
| 2014 | 91 | 125 |
| 2015 | 67 | 128 |
| 2016 | 72 | 129 |
| 2017 | 84 | 124 |
| 2018 | 56 | 71 |
| 2019 | 48 | 67 |
| 2020 | 70 | 93 |
| 2021 | 46 | 68 |
| 2022 | 40 | 62 |
| 2023 | 42 | 65 |
| 2024 | 39 | 72 |
| 2025 | 32 | 80 |
| 2026 | 25 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Pharmaceutical composite formulation comprising proton pump inhibitor and antacid, and method for preparing same18 Aug 2026US 12,708,618 B2Hanmi Pharm. Co., Ltd.
- Pharmaceutical formulations comprising tenofovir alafenamide and emtricitabine14 Jul 2026US 12,678,408 B2Gilead Sciences, Inc.
- DPP-IV inhibitor combined with a further antidiabetic agent, tablets comprising such formulations, their use and process for their preparation14 Jul 2026US 12,678,442 B2Boehringer Ingelheim International GmbH
- Pharmaceutical compositions comprising bupropion and cysteine14 Jul 2026US 12,678,506 B2Antecip Bioventures II LLC
- Pharmaceutical compositions comprising bupropion and cysteine8 Oct 2026US 2026/0306637 A1Antecip Bioventures II LLC
- 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
- Double-release three-layered brivaracetam tablet and preparation method thereof10 Sep 2026US 2026/0263368 A1Taizhou Overseas Pharmaceuticals, Ltd.
- Particle-based multi-layer therapeutic delivery device and method3 Sep 2026US 2026/0256710 A1Privo Technologies, Inc.
Most cited
By later US patents
- 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
- Tablets and methods for modified release of hydrophilic and other active agents239US 6,419,954 B1Yamanouchi Pharmaceutical Co., Ltd. · 2002
- Pharmaceutical compositions for the coordinated delivery of NSAIDs238US 6,926,907 B2Pozen Inc. · 2005