C07J 53/002
Carbocyclic rings fused
Official title: {Carbocyclic rings fused}
C07J53/002 (Carbocyclic rings fused) appears on 256 US grants and 145 published applications in this corpus.
Search patents in C07J- Granted patents
- 256
- Published applications
- 145
- Assignees
- 126
- Inventors
- 568
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 12 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 1 |
| 2002 | 6 | 9 |
| 2003 | 8 | 6 |
| 2004 | 6 | 8 |
| 2005 | 6 | 7 |
| 2006 | 5 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 6 |
| 2009 | 2 | 6 |
| 2010 | 3 | 12 |
| 2011 | 2 | 6 |
| 2012 | 4 | 4 |
| 2013 | 5 | 12 |
| 2014 | 9 | 7 |
| 2015 | 8 | 5 |
| 2016 | 3 | 5 |
| 2017 | 4 | 3 |
| 2018 | 4 | 4 |
| 2019 | 2 | 5 |
| 2020 | 4 | 3 |
| 2021 | 1 | 7 |
| 2022 | 1 | 6 |
| 2023 | 2 | 6 |
| 2024 | 2 | 6 |
| 2025 | 3 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for the preparation of drospirenone as a fine powder through a double change of crystalline form21 Apr 2026US 12,606,591 B2Industriale Chimica S.R.L.
- Steroidal compositions and methods of treating lipogenic cancers28 Oct 2025US 12,454,547 B2Asteroid Therapeutics
- C17 polar-substituted heteroaromatic synthetic triterpenoids and methods of use thereof1 Jul 2025US 12,344,631 B2Reata Pharmaceuticals, Inc.
- Methods for practical synthesis of deuterated amino acids27 May 2025US 12,312,361 B2Arizona Board of Regents on Behalf of the University of Arizona
- Steroid derivative regulators, method for preparing the same, and uses thereof12 Nov 2024US 12,139,508 B2Jiangsu Hansoh Pharmaceutical Group Co., Ltd.
- Fully-continuous synthesis method of cyproterone acetate19 Mar 2026US 2026/0078142 A1Fudan University
- Prodrugs, prodrug compositions and related methods29 Jan 2026US 2026/0027131 A1Praesidia Biotherapeutics Inc.
- C17 polar-substituted heteroaromatic synthetic triterpenoids and methods of use thereof27 Nov 2025US 2025/0361263 A1Reata Pharmaceuticals, Inc.
- Catalyst31 Jul 2025US 2025/0242335 A1The University of Manchester
- Method and apparatus for processing birch bark19 Jun 2025US 2025/0196022 A1Innomost Oy
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
- 14,15-cyclopropano steroids of the 19-norandrostane series, method for the production thereof and pharmaceutical preparations containing said compounds55US 6,388,109 B1Jenapharm GmbH & Co. KG · 2002
- 20-Spiroxanes and analogues having an open ring E, processes for their manufacture, and pharmaceutical preparations thereof54US 4,559,332 ACiba-Geigy Corporation · 1985