A61K 31/612
Having the hydroxy group in position 2 esterified
Official title: having the hydroxy group in position 2 esterified, e.g. salicylsulfuric acid (fosfosal A61K31/661)
A61K31/612 (Having the hydroxy group in position 2 esterified) appears on 677 US grants and 1,280 published applications in this corpus.
Search patents in A61K- Granted patents
- 677
- Published applications
- 1,280
- Assignees
- 593
- Inventors
- 1,934
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 15 | 0 |
| 1998 | 19 | 0 |
| 1999 | 25 | 0 |
| 2000 | 17 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 12 |
| 2003 | 9 | 20 |
| 2004 | 5 | 21 |
| 2005 | 4 | 21 |
| 2006 | 8 | 21 |
| 2007 | 2 | 31 |
| 2008 | 7 | 12 |
| 2009 | 3 | 26 |
| 2010 | 5 | 39 |
| 2011 | 12 | 31 |
| 2012 | 9 | 51 |
| 2013 | 25 | 58 |
| 2014 | 30 | 78 |
| 2015 | 41 | 83 |
| 2016 | 47 | 88 |
| 2017 | 58 | 101 |
| 2018 | 50 | 73 |
| 2019 | 48 | 75 |
| 2020 | 47 | 73 |
| 2021 | 37 | 71 |
| 2022 | 19 | 76 |
| 2023 | 41 | 59 |
| 2024 | 33 | 55 |
| 2025 | 29 | 66 |
| 2026 | 13 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piperidine urea derivatives for cancer therapy15 Sep 2026US 12,734,164 B2NeuroPn Therapeutics, Inc.
- Oral administration of ketamine28 Jul 2026US 12,691,082 B2Vitalis Analgesics LLC
- Solid solution compositions and use in chronic inflammation21 Jul 2026US 12,685,709 B2Infirst Healthcare Limited
- Compositions and methods for the treatment of threatened respiratory failure caused by coronavirus infection and disease14 Jul 2026US 12,678,418 B2Encyt Technologies, Inc.
- Method for treating acute ischemic stroke9 Jun 2026US 12,648,942 B2Lumosa Therapeutics Co., Ltd.
- Sensor for analyte monitoring with drug-eluting capabilities1 Oct 2026US 2026/0294292 A1Senseonics, Incorporated
- Systems and methods for delivery of drugs and other substances comprising deep eutectic solvents24 Sep 2026US 2026/0283948 A1Novilla Pharmaceuticals, Inc.
- Use of milvexian in the treatment and prevention of thrombotic conditions in patients with cardiovascular or cerebrovascular disease24 Sep 2026US 2026/0284049 A1Bristol-Myers Squibb Company
- Sublingual formulation with water-soluble cocrystals of acetylsalicylic acid with citric acid, sodium bicarbonate, and l-theanine for the treatment of acute myocardial infarction17 Sep 2026US 2026/0272826 A1Theaprin Pharmaceuticals Inc.
- Method for treating acute ischemic stroke17 Sep 2026US 2026/0272909 A1Lumosa Therapeutics Co., Ltd.
Most cited
By later US patents
- Method of producing multi-layer medicaments in solid form for oral or rectal administration124US 6,120,802 ABASF SE · 2000
- Compositions comprising hyaluronic acid and drugs122US 5,985,850 AHyal Pharmaceuticals Corporation · 1999
- Anti-reactive anti-asthmatic activity of non-steroidal anti-inflammatory drugs by inhalation120US 6,051,566 AB.S.D. Bio Science Development SNC DI Omini C. & Zuccari G. · 2000
- Benzamides and related inhibitors of factor Xa115US 6,376,515 B2COR Therapeutics, Inc. · 2002
- Compositions and methods for delivery of omeprazole plus acetylsalicylic acid114US 9,539,214 B2Pozen Inc. · 2017