A61K 31/621
Having the hydroxy group in position 2 esterified
Official title: having the hydroxy group in position 2 esterified, e.g. benorylate
A61K31/621 (Having the hydroxy group in position 2 esterified) appears on 124 US grants and 40 published applications in this corpus.
Search patents in A61K- Granted patents
- 124
- Published applications
- 40
- Assignees
- 67
- Inventors
- 205
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 3 | 5 |
| 2017 | 2 | 5 |
| 2018 | 7 | 7 |
| 2019 | 3 | 3 |
| 2020 | 4 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue24 Feb 2026US 12,558,309 B2Medincell
- Use of itaconate and its derivatives/analogues to induce hair growth20 Jan 2026US 12,527,758 B2The Johns Hopkins University
- Use of itaconate and its derivatives/analogues to induce hair growth16 Dec 2025US 12,496,284 B2The Johns Hopkins University
- Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue9 Jan 2024US 11,865,205 B2Medincell
- Acetylsalicylic acid derivative crystal, its preparation method and use5 Jan 2021US 10,882,817 B2Zhejiang Yuejia Pharmaceuticals Co., Ltd
- Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue12 Mar 2026US 2026/0069532 A1Medincell
- Compounds for use in the treatment of dystrophinopathies15 May 2025US 2025/0152567 A1Regents of the University of Minnesota
- Use of itaconate and its derivatives/analogues to induce hair growth5 Dec 2024US 2024/0398739 A1The Johns Hopkins University
- Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue4 Jan 2024US 2024/0000703 A1Medincell
- Use of itaconate and its derivatives/analogues to induce hair growth26 Jan 2023US 2023/0025922 A1The Johns Hopkins University
Most cited
By later US patents
- Pharmaceutical products providing enhanced analgesia110US 4,812,446 AThe Procter & Gamble Company · 1989
- Anti-rheumatoid arthritic drugs in the treatment of dementia105US 5,192,753 A1993
- Method for treatment of dermatological disorders95US 6,180,669 B2Tamarkin Pharmaceutical Innovation Ltd. · 2001
- Guanylhydrazones and their use to treat inflammatory conditions94US 5,854,289 AThe Picower Institute for Medical Research · 1998
- Topical anti-inflammatory drug therapy75US 4,185,100 AJohnson & Johnson · 1980