C07C 50/10
The quinoid structure being part of a condensed ring system containing two
Official title: the quinoid structure being part of a condensed ring system containing two rings
C07C50/10 (The quinoid structure being part of a condensed ring system containing two) appears on 52 US grants and 30 published applications in this corpus.
Search patents in C07C- Granted patents
- 52
- Published applications
- 30
- Assignees
- 42
- Inventors
- 116
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 4 |
| 2022 | 3 | 3 |
| 2023 | 2 | 5 |
| 2024 | 1 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Electroactive species and method for electrochemical gas separation4 Nov 2025US 12,458,922 B2Verdox, Inc.
- Iron catalyzed highly enantioselective cis-dihydroxylation of quinones22 Apr 2025US 12,281,065 B2Laboratory for Synthetic Chemistry and Chemical Biology Limited
- Vitamin K2 synthesis12 Nov 2024US 12,139,456 B2Dsm IP Assets B.V.
- Method of stabilizing perfluorodioxolane compound, perfluorodioxolane compound-containing composition and method of producing perfluorodioxolane compound polymer26 Sep 2023US 11,767,308 B2Tosoh Corporation
- Menaquinol compositions and methods of treatment14 Mar 2023US 11,603,345 B2Epizon Pharma, Inc.
- Photoredox radical benzylation process30 May 2024US 2024/0174589 A1Centre National De La Recherche Scientifique
- Stabilized alkyl nitrite compositions14 Mar 2024US 2024/0082198 A1Emergent Product Development Gaithersburg Inc.
- Protein kinase inhibitors21 Dec 2023US 2023/0406804 A1The Administrators of the Tulane Educational Fund
- Iron catalyzed highly enantioselective cis-dihydroxylation of quinones20 Jul 2023US 2023/0227393 A1Laboratory for Synthetic Chemistry and Chemical Biology Limited
- Vitamin k2 synthesis25 May 2023US 2023/0159429 A1Dsm IP Assets B.V.
Most cited
By later US patents
- Quinone compounds and their use in suppressing the production of SRS-A in mammals39US 4,393,075 ATakeda Chemical Industries, Ltd. · 1983
- Oxidation of organic compounds using ceric ions in aqueous methanesulfonic acid21US 4,639,298 AW. R. Grace & Co. · 1987
- Process for the preparation of vitamin K217US 9,012,693 B2Kappa Bioscience AS · 2015
- Oxidation of organic compounds using ceric methanesulfonate in an aqueous organic solution14US 4,670,108 AW. R. Grace & Co. · 1987
- Oxidative coupling of alkylphenols, alkoxyphenols and 1-naphthols catalyzed by metal complexes of amino compounds11US 4,085,124 AICI Americas Inc. · 1978