A61K 9/0004
Osmotic delivery systems
Official title: {Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas}
A61K9/0004 (Osmotic delivery systems) appears on 1,166 US grants and 1,317 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,166
- Published applications
- 1,317
- Assignees
- 414
- Inventors
- 1,790
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 2 | 0 |
| 1984 | 14 | 0 |
| 1985 | 4 | 0 |
| 1986 | 16 | 0 |
| 1987 | 21 | 0 |
| 1988 | 21 | 0 |
| 1989 | 30 | 0 |
| 1990 | 34 | 0 |
| 1991 | 31 | 0 |
| 1992 | 23 | 0 |
| 1993 | 43 | 0 |
| 1994 | 20 | 0 |
| 1995 | 13 | 0 |
| 1996 | 14 | 0 |
| 1997 | 37 | 0 |
| 1998 | 30 | 0 |
| 1999 | 39 | 0 |
| 2000 | 16 | 0 |
| 2001 | 29 | 18 |
| 2002 | 21 | 35 |
| 2003 | 25 | 52 |
| 2004 | 17 | 70 |
| 2005 | 19 | 97 |
| 2006 | 15 | 59 |
| 2007 | 10 | 77 |
| 2008 | 15 | 66 |
| 2009 | 18 | 40 |
| 2010 | 24 | 47 |
| 2011 | 28 | 52 |
| 2012 | 44 | 47 |
| 2013 | 31 | 55 |
| 2014 | 39 | 43 |
| 2015 | 46 | 66 |
| 2016 | 36 | 66 |
| 2017 | 41 | 56 |
| 2018 | 31 | 42 |
| 2019 | 36 | 49 |
| 2020 | 27 | 52 |
| 2021 | 34 | 49 |
| 2022 | 21 | 52 |
| 2023 | 20 | 39 |
| 2024 | 35 | 36 |
| 2025 | 18 | 34 |
| 2026 | 16 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Delayed release compositions22 Sep 2026US 12,740,951 B2Amneal Complex Products Research LLC
- Clinical dosing schedule of inositol phosphate oligo(ethylene glycol) compounds15 Sep 2026US 12,734,184 B2Vifor (International) AG
- ABCD1 for treatment of neurodisorders15 Sep 2026US 12,735,706 B2The General Hospital Corporation
- Environmentally biodegradable compositions comprising an amino acid adduct, controlled release particles and compositions comprising same, and methods of making same1 Sep 2026US 12,723,125 B2Trucapsol LLC
- Methods of otoprotection against platinum-based antineoplastic agents16 Jun 2026US 12,653,838 B2Decibel Therapeutics, Inc.
- Colonic purgative tablet and colonic purgative comprising same8 Oct 2026US 2026/0306413 A1Pharmbio Korea Co., Ltd.
- Delayed timed release pharmaceutical composition, preparation method therefor, and use thereof10 Sep 2026US 2026/0263349 A1Shanghai Wd Pharmaceutical Co., Ltd
- Formulations Of Apremilast13 Aug 2026US 2026/0232631 A1Amgen Inc.
- Erdafitinib for intravesical administration for use in the treatment of bladder cancer13 Aug 2026US 2026/0232660 A1TARIS Biomedical LLC
- Osmotic pharmaceutical capsule6 Aug 2026US 2026/0224495 A1R.P. Scherer Technologies, LLC
Most cited
By later US patents
- Osmotic device with hydrogel driving member1,628US 4,327,725 AAlza Corporation · 1982
- Means for providing instant agent from agent dispensing system1,381US 4,643,731 AAlza Corporation · 1987
- Osmotic system having laminar arrangement for programming delivery of active agent1,023US 4,008,719 AAlza Corporation · 1977
- Dispensing device containing a hydrophobic medium820US 5,431,921 APfizer Inc. · 1995
- Swelling modulated polymeric drug delivery device706US 5,120,548 AMerck & Co., Inc. · 1992