A61K 31/167
Having the nitrogen of a carboxamide group directly attached to the aromatic
Official title: having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol
A61K31/167 (Having the nitrogen of a carboxamide group directly attached to the aromatic) appears on 2,839 US grants and 5,501 published applications in this corpus.
Search patents in A61K- Granted patents
- 2,839
- Published applications
- 5,501
- Assignees
- 2,182
- Inventors
- 8,832
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 11 | 0 |
| 1997 | 36 | 0 |
| 1998 | 25 | 0 |
| 1999 | 37 | 0 |
| 2000 | 32 | 0 |
| 2001 | 39 | 14 |
| 2002 | 38 | 58 |
| 2003 | 26 | 88 |
| 2004 | 25 | 96 |
| 2005 | 21 | 75 |
| 2006 | 29 | 95 |
| 2007 | 31 | 85 |
| 2008 | 26 | 86 |
| 2009 | 22 | 130 |
| 2010 | 39 | 155 |
| 2011 | 34 | 199 |
| 2012 | 65 | 192 |
| 2013 | 110 | 234 |
| 2014 | 159 | 315 |
| 2015 | 172 | 370 |
| 2016 | 186 | 356 |
| 2017 | 195 | 352 |
| 2018 | 188 | 279 |
| 2019 | 186 | 289 |
| 2020 | 205 | 287 |
| 2021 | 182 | 364 |
| 2022 | 153 | 328 |
| 2023 | 173 | 315 |
| 2024 | 140 | 283 |
| 2025 | 157 | 266 |
| 2026 | 86 | 190 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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- Compositions and methods for topical administration of pharmaceutically active agents369US 5,719,197 ANoven Pharmaceuticals, Inc. · 1998
- Compositions and methods for topical administration of pharmaceutically active agents324US 5,446,070 ANover Pharmaceuticals, Inc. · 1995
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- Prolonged nerve blockade by the combination of local anesthetic and glucocorticoid242US 5,700,485 AChildren's Medical Center Corporation · 1997