C07D 311/56
Without hydrogen atoms in position 3
Official title: without hydrogen atoms in position 3
C07D311/56 (Without hydrogen atoms in position 3) appears on 108 US grants and 85 published applications in this corpus.
Search patents in C07D- Granted patents
- 108
- Published applications
- 85
- Assignees
- 91
- Inventors
- 347
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 4 |
| 2004 | 2 | 11 |
| 2005 | 2 | 4 |
| 2006 | 3 | 4 |
| 2007 | 3 | 5 |
| 2008 | 3 | 6 |
| 2009 | 3 | 3 |
| 2010 | 5 | 2 |
| 2011 | 4 | 4 |
| 2012 | 4 | 3 |
| 2013 | 3 | 2 |
| 2014 | 2 | 5 |
| 2015 | 2 | 4 |
| 2016 | 4 | 1 |
| 2017 | 3 | 2 |
| 2018 | 1 | 9 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 4 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for electrochromic molecules2 Dec 2025US 12,486,447 B2Wuxi Bozhi Huachuang Science and Technology Co., Ltd.
- Method for synthesizing (RS)-Warfarin19 Dec 2023US 11,845,735 B2
- Compositions, methods, and systems for the synthesis and use of imaging agents5 Sep 2023US 11,744,906 B2Lantheus Medical Imaging, Inc.
- Aminocoumarin compounds and methods of their use1 Aug 2023US 11,713,335 B2President and Fellows of Harvard College
- Highly efficient free radical photopolymerizations through enabled dark cure7 Mar 2023US 11,597,735 B2The Regents of the University of Colorado, a body corporate
- Viscous composition for treating ischemia30 Apr 2026US 2026/0115253 A1National Cheng Kung University
- Compositions, methods, and systems for the synthesis and use of imaging agents29 May 2025US 2025/0170283 A1Lantheus Medical Imaging, Inc.
- Cyclic(alkyl)(amino)alkoxy-substituted aryl-pyrone compound and use thereof15 May 2025US 2025/0154121 A1Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
- Rare earth complex6 Mar 2025US 2025/0074925 A1Sagami Chemical Research Institute
- Compositions, methods, and systems for the synthesis and use of imaging agents28 Mar 2024US 2024/0100199 A1Lantheus Medical Imaging, Inc.
Most cited
By later US patents
- Novobiocin analogues as neuroprotective agents and in the treatment of autoimmune disorders107US 7,622,451 B2University of Kansas · 2009
- Inhibitors of histone deacetylase67US 6,897,220 B2MethylGene Inc. · 2005
- Radiation sensitive plates65US 5,130,227 AVickers, Incorporated · 1992
- 4H-1-benzopyran-4-one derivative or its salt, process for producing the same and pharmaceutical composition comprising the same as active ingredient43US 4,954,518 AToyama Chemical Co., Ltd. · 1990
- Heteroaryloxymethyl ketones as interleukin-1.beta.converting enzyme inhibitors40US 5,585,357 ASanofi Winthrop, Inc. · 1996