A61K 9/2886
Having two or more different drug-free coatings
Official title: {having two or more different drug-free coatings; Tablets of the type inert core-drug layer-inactive layer (of the type active core-drug layer-inactive layer A61K9/209)}
A61K9/2886 (Having two or more different drug-free coatings) appears on 553 US grants and 956 published applications in this corpus.
Search patents in A61K- Granted patents
- 553
- Published applications
- 956
- Assignees
- 409
- Inventors
- 1,571
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 13 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 16 | 0 |
| 2001 | 19 | 6 |
| 2002 | 16 | 22 |
| 2003 | 18 | 41 |
| 2004 | 12 | 45 |
| 2005 | 7 | 50 |
| 2006 | 7 | 36 |
| 2007 | 10 | 34 |
| 2008 | 7 | 47 |
| 2009 | 10 | 37 |
| 2010 | 17 | 45 |
| 2011 | 15 | 59 |
| 2012 | 18 | 36 |
| 2013 | 30 | 40 |
| 2014 | 32 | 60 |
| 2015 | 17 | 51 |
| 2016 | 23 | 33 |
| 2017 | 29 | 39 |
| 2018 | 17 | 35 |
| 2019 | 22 | 43 |
| 2020 | 40 | 35 |
| 2021 | 24 | 34 |
| 2022 | 26 | 36 |
| 2023 | 16 | 32 |
| 2024 | 14 | 20 |
| 2025 | 12 | 26 |
| 2026 | 4 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Film coated tablet23 Jun 2026US 12,661,325 B2Kirin Holdings Kabushiki Kaisha
- Modified release composition of orlistat and acarbose for the treatment of obesity and related metabolic disorders19 May 2026US 12,629,340 B2Empros Pharma AB
- Dosage form comprising an alkaline agent and an enteric coating layer12 May 2026US 12,622,875 B2Evonik Operations GmbH
- Delivery system for polyunsaturated fatty acids6 Jan 2026US 12,514,826 B2Dsm IP Assets B.V.
- Intestinal alkaline phosphatase formulations18 Nov 2025US 12,472,147 B2Theriva Biologics, Inc.
- Method and pharmaceutical composition for treating a sleep disorder8 Oct 2026US 2026/0306442 A1Overseas Pharmaceuticals, Ltd.
- Delayed timed release pharmaceutical composition, preparation method therefor, and use thereof10 Sep 2026US 2026/0263349 A1Shanghai Wd Pharmaceutical Co., Ltd
- A stable tablet-in-tablet composition for nausea vomiting in pregnancy20 Aug 2026US 2026/0240779 A1Akums Drugs & Pharmaceuticals Limited
- Metformin hydrochloride enteric-coated preparation30 Jul 2026US 2026/0216081 A1Yayan (Tianjin) Biomedical Technology Center (Limited Partnership)
- Drug loaded modified release pellets16 Jul 2026US 2026/0199253 A1ADD Advanced Drug Delivery Technologies Ltd.
Most cited
By later US patents
- Delivery of multiple doses of medications377US 5,837,284 A1998
- Extended release dosage form328US 6,245,357 B1Alza Corporation · 2001
- Pharmaceutical preparation for oral use320US 4,786,505 AAktiebolaget Hassle · 1988
- Colon targeted delivery system216US 6,039,975 AHoffman-La Roche Inc. · 2000
- Controlled release drug delivery device207US 5,681,584 ACiba-Geigy Corporation · 1997