C07C 49/423
A keto group being part of a condensed ring system
Official title: a keto group being part of a condensed ring system
C07C49/423 (A keto group being part of a condensed ring system) appears on 164 US grants and 84 published applications in this corpus.
Search patents in C07C- Granted patents
- 164
- Published applications
- 84
- Assignees
- 75
- Inventors
- 271
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 8 |
| 2003 | 3 | 5 |
| 2004 | 4 | 13 |
| 2005 | 10 | 5 |
| 2006 | 6 | 9 |
| 2007 | 9 | 1 |
| 2008 | 3 | 5 |
| 2009 | 4 | 4 |
| 2010 | 7 | 6 |
| 2011 | 6 | 2 |
| 2012 | 0 | 5 |
| 2013 | 5 | 1 |
| 2014 | 1 | 6 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 3 | 2 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
| 2025 | 0 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Precursor compound of tetracyclic hydrocarbon and preparation method thereof, and tetracyclic hydrocarbon and preparation method and use thereof10 Dec 2024US 12,162,812 B2Tianjin University
- Polycyclic carbogenic molecules and uses thereof as anti-cancer agents21 May 2024US 11,987,546 B2Northwestern University
- Catalysts7 Jun 2022US 11,352,376 B2Borealis AG
- Polycyclic carbogenic molecules and uses thereof as anti-cancer agents29 Mar 2022US 11,286,226 B2Northwestern University
- Method of producing epirubicin and novel production intermediate thereof28 May 2019US 10,301,343 B2Meiji Seika Pharma Co., Ltd.
- Methods and intermediates for preparing compounds10 Sep 2026US 2026/0265170 A1ViiV HEALTHCARE UK (NO. 5) LIMITED
- Precursor compound of tetracyclic hydrocarbon and preparation method thereof2 Apr 2026US 2026/0092026 A1
- Small molecule antagonists of pf411 Sep 2025US 2025/0281424 A1Fox Chase Chemical Diversity Center, Inc.
- Chemical process11 Sep 2025US 2025/0282702 A1Syngenta Crop Protection AG
- Precursor compound of tetracyclic hydrocarbon and preparation method thereof, and tetracyclic hydrocarbon and preparation method and use thereof3 Oct 2024US 2024/0327318 A1Tianjin University
Most cited
By later US patents
- (20S)-1α-hydroxy-2α-methyl and 2β-methyl-19-nor-vitamin D3 and their uses1,031US 7,094,916 B2Wisconsin Alumni Research Foundation · 2006
- Fused bicyclic or tricyclic amino acids42US 6,596,900 B2Pfizer Inc. · 2003
- Diamondoid polymeric compositions39US 5,019,660 AMobil Oil Corporation · 1991
- Diamondoid-containing materials in microelectronics35US 6,783,589 B2Chevron U.S.A.Inc. · 2004
- Diamondoid-containing amines32US 5,380,947 AMobil Oil Corporation · 1995