A61K 31/618
Having the carboxyl group in position 1 esterified
Official title: having the carboxyl group in position 1 esterified, e.g. salsalate
A61K31/618 (Having the carboxyl group in position 1 esterified) appears on 219 US grants and 222 published applications in this corpus.
Search patents in A61K- Granted patents
- 219
- Published applications
- 222
- Assignees
- 153
- Inventors
- 506
- 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 | 4 | 0 |
| 2001 | 3 | 3 |
| 2002 | 4 | 4 |
| 2003 | 1 | 3 |
| 2004 | 2 | 5 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 6 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 1 | 6 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 2 | 14 |
| 2014 | 11 | 14 |
| 2015 | 7 | 21 |
| 2016 | 16 | 17 |
| 2017 | 8 | 16 |
| 2018 | 14 | 22 |
| 2019 | 10 | 15 |
| 2020 | 11 | 17 |
| 2021 | 8 | 10 |
| 2022 | 8 | 8 |
| 2023 | 6 | 5 |
| 2024 | 2 | 14 |
| 2025 | 4 | 5 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Fragrance compositions and use thereof for improving sleep28 Oct 2025US 12,453,736 B2Takasago International Corporation
- Methods and formulations to treat mitochondrial dysfunction5 Aug 2025US 12,377,077 B2The Board of Trustees of the Leland Stanford Junior University
- Massaging balm formulation20 Aug 2026US 2026/0240767 A1Chattem, Inc.
- Modified mrna therapeutics11 Jun 2026US 2026/0158108 A1Shattuck Labs, Inc.
- Chimeric proteins for treating cutaneous inflammation21 May 2026US 2026/0139030 A1Shattuck Labs, Inc.
- Method for morselizing and/or targeting pharmaceutically active principles to synovial tissue12 Mar 2026US 2026/0069532 A1Medincell
- Fragrance compositions and use thereof for improving sleep29 Jan 2026US 2026/0027132 A1Takasago International Corporation
Most cited
By later US patents
- Compositions, kits, and methods for inhibiting cerebral neurovascular disorders and muscular headaches224US 6,432,986 B12002
- Method for directed intranasal administration of a composition196US 7,799,337 B22010
- 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