C07J 21/005
Ketals
Official title: {Ketals}
C07J21/005 (Ketals) appears on 293 US grants and 178 published applications in this corpus.
Search patents in C07J- Granted patents
- 293
- Published applications
- 178
- Assignees
- 123
- Inventors
- 553
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 11 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 7 | 0 |
| 1997 | 14 | 0 |
| 1998 | 14 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 6 |
| 2004 | 3 | 5 |
| 2005 | 4 | 6 |
| 2006 | 3 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 5 |
| 2009 | 3 | 4 |
| 2010 | 4 | 2 |
| 2011 | 3 | 2 |
| 2012 | 3 | 3 |
| 2013 | 1 | 7 |
| 2014 | 0 | 7 |
| 2015 | 5 | 9 |
| 2016 | 5 | 12 |
| 2017 | 7 | 10 |
| 2018 | 7 | 8 |
| 2019 | 9 | 13 |
| 2020 | 7 | 14 |
| 2021 | 12 | 17 |
| 2022 | 6 | 6 |
| 2023 | 4 | 10 |
| 2024 | 3 | 12 |
| 2025 | 5 | 12 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Neuroactive steroids and methods of use thereof5 May 2026US 12,617,814 B2Sage Therapeutics, Inc.
- Androstane derivatives with activity as pure or predominantly pure stimulators of SERCA2a for the treatment of heart failure23 Dec 2025US 12,503,484 B2Seismic Pharmaceuticals
- Neuroactive steroids, compositions and uses thereof18 Nov 2025US 12,473,327 B2Sage Therapeutics, Inc.
- Method for synthesizing ursodeoxycholic acid using BA as raw material14 Oct 2025US 12,441,759 B2Jiangsu Jiaerke Pharmaceuticals Group Corp., Ltd.
- Cyclin-dependent kinase degraders and methods of use10 Jun 2025US 12,325,725 B2Dana-Farber Cancer Institute, Inc.
- Androstane Derivatives with Activity as Pure or Predominantly Pure Stimulators of SERCA2a for the Treatment of Heart Failure7 May 2026US 2026/0125415 A1Seismic Pharmaceuticals Operations LLC
- Compositions and methods for treating cns disorders9 Apr 2026US 2026/0098053 A1Sage Therapeutics, Inc.
- Neuroactive 19-alkoxy-17-substituted steroids, prodrugs thereof, and methods of treatment using same5 Feb 2026US 2026/0034146 A1Sage Therapeutics, Inc.
- Intermediate compound and preparation method therefor and application thereof25 Sep 2025US 2025/0296950 A1Hunan Kyf Pharmaceutical Co., Ltd.
- GPX4 Inhibitors and Senolytic Compounds and Uses Thereof25 Sep 2025US 2025/0296951 A1
Most cited
By later US patents
- Anti-estrogenic compounds and compositions119US 5,395,842 AEndorecherche, Inc. · 1995
- 19-Oxygenated-5.alpha.-androstanes for the enhancement of libido91US 4,071,625 ARichardson-Merrell Inc. · 1978
- 17-Hydroxy-steroids72US 4,898,694 A1990
- Methods, compositions, and compounds for allosteric modulation of the GABA receptor by members of the androstane and pregnane series70US 5,232,917 AUniversity of Southern California · 1993
- Novel steroids61US 4,386,085 ARoussell Uclaf · 1983