C07D 307/33
In position 2, the oxygen atom being in its keto or unsubstituted
Official title: in position 2, the oxygen atom being in its keto or unsubstituted enol form
C07D307/33 (In position 2, the oxygen atom being in its keto or unsubstituted) appears on 1,010 US grants and 722 published applications in this corpus.
Search patents in C07D- Granted patents
- 1,010
- Published applications
- 722
- Assignees
- 474
- Inventors
- 2,531
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 18 | 0 |
| 1978 | 46 | 0 |
| 1979 | 19 | 0 |
| 1980 | 32 | 0 |
| 1981 | 35 | 0 |
| 1982 | 25 | 0 |
| 1983 | 18 | 0 |
| 1984 | 15 | 0 |
| 1985 | 21 | 0 |
| 1986 | 13 | 0 |
| 1987 | 15 | 0 |
| 1988 | 10 | 0 |
| 1989 | 14 | 0 |
| 1990 | 16 | 0 |
| 1991 | 9 | 0 |
| 1992 | 21 | 0 |
| 1993 | 18 | 0 |
| 1994 | 21 | 0 |
| 1995 | 16 | 0 |
| 1996 | 8 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 19 | 0 |
| 2000 | 26 | 0 |
| 2001 | 29 | 2 |
| 2002 | 26 | 37 |
| 2003 | 22 | 30 |
| 2004 | 24 | 44 |
| 2005 | 22 | 32 |
| 2006 | 19 | 34 |
| 2007 | 18 | 24 |
| 2008 | 17 | 26 |
| 2009 | 15 | 22 |
| 2010 | 16 | 34 |
| 2011 | 18 | 25 |
| 2012 | 26 | 40 |
| 2013 | 27 | 36 |
| 2014 | 21 | 33 |
| 2015 | 36 | 40 |
| 2016 | 26 | 32 |
| 2017 | 23 | 30 |
| 2018 | 23 | 34 |
| 2019 | 27 | 26 |
| 2020 | 21 | 23 |
| 2021 | 15 | 21 |
| 2022 | 18 | 21 |
| 2023 | 8 | 21 |
| 2024 | 12 | 16 |
| 2025 | 16 | 24 |
| 2026 | 9 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lignan derivative, preparation method therefor and use thereof28 Jul 2026US 12,692,283 B2Shanghai Institute of Materia Medica Chinese Academy of Science
- Alkyne compound, vitamin D compound, analytical method, and production method19 May 2026US 12,630,505 B2JEOL Ltd.
- Use of trifluenfuronate for prevention and treatment of agricultural pest insects and mites14 Apr 2026US 12,599,133 B2Shandong United Pesticide Industry Co., Ltd.
- Modulators of the sigma-2 receptor and their method of use17 Mar 2026US 12,577,251 B2Temple University of the Commonwealth System of Higher Education
- Radiation-sensitive resin composition, method of forming resist pattern, polymer, and compound24 Feb 2026US 12,560,866 B2Jsr Corporation
- Novel carboxamide derivatives8 Oct 2026US 2026/0308149 A1Angelini Pharma S.P.A.
- Globodera pallida control agent20 Aug 2026US 2026/0240154 A1National Agriculture and Food Research Organization
- Process for continuous hydrogenation of aqueous levulinic acid to gamma-valerolactone and its tandem conversion to high octane gasoline range hydrocarbons6 Aug 2026US 2026/0225081 A1Eco-Oil Miljobranslen I Sverige AB
- Sulfonium salt, chemically amplified resist composition, and pattern forming process30 Jul 2026US 2026/0219569 A1Shin-Etsu Chemical Co., Ltd.
- Sugarcane derived semi-synthetic cosmetic ingredients, methods of production thereof, and personal care products derived therefrom23 Jul 2026US 2026/0207459 A1Amyris, Inc.
Most cited
By later US patents
- Ligands for metals and improved metal-catalyzed processes based thereon143US 6,307,087 B1Massachusetts Institute of Technology · 2001
- Difluoro antivirals and intermediate therefor135US 4,808,614 AEli Lilly and Company · 1989
- Difluoro antivirals and intermediate therefor120US 4,526,988 AEli Lilly and Company · 1985
- Ligands for metals and improved metal-catalyzed processes based thereon100US 6,395,916 B1Massachusetts Institute of Technology · 2002
- Ligands for metals and improved metal-catalyzed processes based thereon93US 7,223,879 B2Massachusetts Institute of Technology · 2007