A61K 31/59
Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
A61K31/59 (Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems) appears on 1,394 US grants and 2,671 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,394
- Published applications
- 2,671
- Assignees
- 1,061
- Inventors
- 3,823
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 22 | 0 |
| 1997 | 20 | 0 |
| 1998 | 30 | 0 |
| 1999 | 30 | 0 |
| 2000 | 23 | 0 |
| 2001 | 22 | 13 |
| 2002 | 22 | 48 |
| 2003 | 32 | 63 |
| 2004 | 10 | 56 |
| 2005 | 24 | 109 |
| 2006 | 32 | 79 |
| 2007 | 10 | 64 |
| 2008 | 14 | 82 |
| 2009 | 12 | 58 |
| 2010 | 17 | 105 |
| 2011 | 14 | 91 |
| 2012 | 27 | 74 |
| 2013 | 49 | 102 |
| 2014 | 63 | 123 |
| 2015 | 52 | 127 |
| 2016 | 70 | 159 |
| 2017 | 77 | 142 |
| 2018 | 97 | 133 |
| 2019 | 93 | 114 |
| 2020 | 73 | 118 |
| 2021 | 72 | 145 |
| 2022 | 66 | 182 |
| 2023 | 58 | 160 |
| 2024 | 71 | 116 |
| 2025 | 56 | 106 |
| 2026 | 33 | 102 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods for identifying pre-disposition to cognitive decline and agents for reducing or preventing cognitive decline, or improving cognitive ability29 Sep 2026US 12,746,255 B2Societe des Produits Nestle S. A.
- Nutritional formulas comprising medium chain fatty acids or esters thereof and methods related thereto15 Sep 2026US 12,734,145 B2Children's Healthcare of Atlanta, Inc.
- Ammonium chloride formulation to support human natural defense against viruses15 Sep 2026US 12,734,193 B2
- Fibrous composite material8 Sep 2026US 12,728,101 B2The Electrospinning Company Ltd
- Method of increasing the population of Dialister spp. in the gut microbiome8 Sep 2026US 12,728,109 B2Dsm IP Assets B.V.
- Systems and methods for transderman patch delivery8 Oct 2026US 2026/0306421 A1
- Nutritional compositions, supplements, and fortifiers8 Oct 2026US 2026/0306432 A1Societe des Produits Nestle S. A.
- Topical composition8 Oct 2026US 2026/0306512 A1Api Corporation
- Sleep formulation1 Oct 2026US 2026/0294816 A1NightWise, LLC
- Beta-hydroxybutyrate for the dietary management of depression1 Oct 2026US 2026/0294854 A1Laureate Institute For Brain Research
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
- Frozen piercing implements and methods for piercing a substrate284US 8,784,385 B2The Invention Science Fund I, LLC · 2014
- Systems and processes for spray drying hydrophobic drugs with hydrophilic excipients174US 6,077,543 AInhale Therapeutic Systems · 2000
- Processes for spray drying aqueous suspensions of hydrophobic drugs and compositions thereof163US 6,001,336 AInhale Therapeutic Systems · 1999
- Processes for spray drying hydrophobic drugs in organic solvent suspensions158US 5,976,574 AInhale Therapeutic Systems · 1999