C07C 46/00
Preparation of quinones
C07C46/00 (Preparation of quinones) appears on 558 US grants and 220 published applications in this corpus.
Search patents in C07C- Granted patents
- 558
- Published applications
- 220
- Assignees
- 279
- Inventors
- 1,188
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 21 | 0 |
| 1978 | 31 | 0 |
| 1979 | 21 | 0 |
| 1980 | 29 | 0 |
| 1981 | 23 | 0 |
| 1982 | 14 | 0 |
| 1983 | 17 | 0 |
| 1984 | 24 | 0 |
| 1985 | 20 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 6 | 0 |
| 1989 | 14 | 0 |
| 1990 | 21 | 0 |
| 1991 | 12 | 0 |
| 1992 | 21 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 2 |
| 2002 | 15 | 11 |
| 2003 | 4 | 9 |
| 2004 | 9 | 11 |
| 2005 | 8 | 11 |
| 2006 | 2 | 11 |
| 2007 | 5 | 8 |
| 2008 | 5 | 7 |
| 2009 | 2 | 9 |
| 2010 | 7 | 8 |
| 2011 | 0 | 10 |
| 2012 | 7 | 6 |
| 2013 | 5 | 6 |
| 2014 | 5 | 6 |
| 2015 | 7 | 9 |
| 2016 | 8 | 4 |
| 2017 | 6 | 13 |
| 2018 | 13 | 12 |
| 2019 | 9 | 6 |
| 2020 | 6 | 9 |
| 2021 | 5 | 10 |
| 2022 | 9 | 10 |
| 2023 | 7 | 8 |
| 2024 | 5 | 10 |
| 2025 | 3 | 9 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Co-crystal of coenzyme QH and nicotinamide, preparation method therefor and use thereof25 Aug 2026US 12,715,832 B2Cocrystal Technology (Jiaxing) Co., Ltd.
- Naphthoquinone-based chalcone derivatives and uses thereof9 Jun 2026US 12,649,709 B2
- Production method for reduced coenzyme Q10 form-II type crystal or crystalline solid thereof5 May 2026US 12,617,744 B2Kaneka Corporation
- Method and intermediate compounds for the preparation of menaquinone MK-718 Nov 2025US 12,473,248 B2Vitasynth Sp. Z.O.O
- Method for separating 2-alkylanthracenes and use thereof for producing hydrogen peroxide19 Aug 2025US 12,391,633 B2China Petroleum & Chemical Corporation
- Manufacturing 2,3,5-trimethylhydroquinone from a mixture of mesitol and 2,3,6-trimethylphenol20 Aug 2026US 2026/0242317 A1Dsm IP Assets B.V.
- Soil conditioner and use thereof6 Aug 2026US 2026/0225970 A1Japan International Research Center for Agricultural Sciences
- Compounds, compositions, methods of using, and methods for preparing compounds2 Jul 2026US 2026/0183260 A1The Institute for Stem Cell Biology and Regenerative Medicine (Instem)
- Quinone-derived compounds and use thereof against leishmania spp22 Jan 2026US 2026/0022089 A1Universidad De La Laguna
- Process for the synthesis of vitamin k215 Jan 2026US 2026/0015309 A1Synergia Life Sciences Pvt. Ltd.
Most cited
By later US patents
- Aromatic-aliphatic ketones useful as photoinitiators66US 4,496,447 AMerck Patent Gesellschaft mit beschraenkter Haftung · 1985
- Aromatic-aliphatic ketones useful as photoinitiators63US 4,374,984 AMerck Patent GmbH · 1983
- Crystalline silicate compositions and method of preparation52US 5,672,556 ABoard of Trustees operating Michigan State University · 1997
- Silica-containing shaped articles and a process for their preparation51US 4,764,498 ABayer Aktiengesellschaft · 1988
- Crystalline inorganic oxide compositions prepared by neutral templating route49US 5,800,800 ABoard of Trustees operating Michigan State University · 1998