C07C 237/26
Of a ring being part of a condensed ring system formed by
Official title: of a ring being part of a condensed ring system formed by at least four rings, e.g. tetracycline
C07C237/26 (Of a ring being part of a condensed ring system formed by) appears on 183 US grants and 225 published applications in this corpus.
Search patents in C07C- Granted patents
- 183
- Published applications
- 225
- Assignees
- 70
- Inventors
- 316
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 12 |
| 2003 | 5 | 6 |
| 2004 | 6 | 15 |
| 2005 | 4 | 19 |
| 2006 | 4 | 13 |
| 2007 | 5 | 12 |
| 2008 | 5 | 10 |
| 2009 | 4 | 11 |
| 2010 | 15 | 18 |
| 2011 | 6 | 14 |
| 2012 | 18 | 11 |
| 2013 | 13 | 13 |
| 2014 | 4 | 8 |
| 2015 | 4 | 5 |
| 2016 | 10 | 10 |
| 2017 | 7 | 7 |
| 2018 | 6 | 8 |
| 2019 | 3 | 8 |
| 2020 | 3 | 4 |
| 2021 | 2 | 4 |
| 2022 | 0 | 3 |
| 2023 | 2 | 4 |
| 2024 | 0 | 2 |
| 2025 | 3 | 3 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modified tetracyclines for treatment of alcohol use disorder, pain and other disorders involving potential inflammatory processes2 Dec 2025US 12,486,219 B2Texas Tech University System
- Process for making sarecycline hydrochloride13 May 2025US 12,297,161 B2Almirall, S.A.
- Modified tetracycline for treatment of alcohol use disorder, pain and other disorders involving potential inflammatory processes21 Jan 2025US 12,202,785 B2Texas Tech University System
- Compositions and methods related to di-substituted bicyclo[2.2.1] heptanamine-containing compounds12 Dec 2023US 11,840,495 B2Instituto Carlos Slim De La Salud, A.C.
- Modified tetracycline for treatment of alcohol use disorder, pain and other disorders involving potential inflammatory processes3 Jan 2023US 11,542,227 B2Texas Tech University System
- Resist composition, resist pattern formation method, compound, and acid diffusion control agent16 Jul 2026US 2026/0202743 A1Tokyo Ohka Kogyo.Co., Ltd.
- Compositions of bifunctional inhibitors of tetracycline inactivating enzymes and methods of use thereof7 May 2026US 2026/0124217 A1Washington University
- Modified Tetracyclines for Treatment of Alcohol Use Disorder, Pain and Other Disorders Involving Potential Inflammatory Processes16 Apr 2026US 2026/0103439 A1Texas Tech University System
- Salts and polymorphs of a tetracycline compound26 Feb 2026US 2026/0053824 A1Paratek Pharmaceuticals, Inc.
- Substituted tetracycline compounds for treatment of inflammatory skin disorders15 Jan 2026US 2026/0015317 A1Paratek Pharmaceuticals, Inc.
Most cited
By later US patents
- Bioanalytical measuring method using oxidases and lanthanoid-ligand complexes159US 7,052,864 B2Active Motif Chromeon GmbH · 2006
- 9- (substituted amino) -alpha-6-deoxy-5-oxy tetracycline derivatives, their preparation and their use as antibiotics89US 5,834,450 APfizer Inc. · 1998
- 7, 9-substituted tetracycline compounds85US 6,683,068 B2Paratek Pharmaceuticals, Inc. · 2004
- 7-substituted tetracycline compounds84US 6,818,635 B2Paratek Pharmaceuticals, Inc. · 2004
- 9-substituted minocycline compounds83US 6,846,939 B2Paratek Pharmaceuticals, Inc. · 2005