A61K 35/50
Placenta
Official title: Placenta; Placental stem cells; Amniotic fluid; Amnion; Amniotic stem cells
A61K35/50 (Placenta) appears on 635 US grants and 1,219 published applications in this corpus.
Search patents in A61K- Granted patents
- 635
- Published applications
- 1,219
- Assignees
- 333
- Inventors
- 1,107
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 5 |
| 2003 | 4 | 5 |
| 2004 | 0 | 10 |
| 2005 | 0 | 13 |
| 2006 | 2 | 14 |
| 2007 | 3 | 32 |
| 2008 | 1 | 26 |
| 2009 | 8 | 19 |
| 2010 | 3 | 33 |
| 2011 | 6 | 30 |
| 2012 | 18 | 53 |
| 2013 | 36 | 79 |
| 2014 | 47 | 77 |
| 2015 | 44 | 87 |
| 2016 | 37 | 100 |
| 2017 | 49 | 64 |
| 2018 | 37 | 79 |
| 2019 | 57 | 75 |
| 2020 | 35 | 71 |
| 2021 | 42 | 70 |
| 2022 | 38 | 69 |
| 2023 | 35 | 70 |
| 2024 | 39 | 53 |
| 2025 | 33 | 47 |
| 2026 | 23 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions and methods for providing hematopoietic function without HLA matching22 Sep 2026US 12,741,001 B2Fred Hutchinson Cancer Center
- Composition for treating infectious diseases, comprising exosomes derived from thrombin-treated stem cells15 Sep 2026US 12,734,195 B2Samsung Life Public Welfare Foundation
- Equine-specific therapeutic compositions and methods of use8 Sep 2026US 12,728,141 B2Equistem Technology, LLC
- Extracellular vesicles from stem cells to treat and/or prevent disease1 Sep 2026US 12,721,867 B2Children’s Hospital Los Angeles
- Treatment of radicular pain with cell-free amniotic fluid1 Sep 2026US 12,721,868 B2University of Utah Research Foundation
- Processes and apparatuses for obtaining amniotic mesenchymal stem cells from amniotic fluid and cells derived thereof1 Oct 2026US 2026/0294976 A1Amniotics AB
- Micronized compositions for wound healing prepared from human umbilical cord tissue and intact amnion-chorion tissue having an intact intermediate spongy layer positioned there between1 Oct 2026US 2026/0294982 A1Biostem Technologies, Inc.
- Sterile human placental allografts and methods of making thereof1 Oct 2026US 2026/0294983 A1Biostem Technologies, Inc.
- Pluripotent stem cell that can be isolated from body tissue1 Oct 2026US 2026/0297512 A1MuseCell Innovations Pte. Ltd.
- Sterile human placental allografts and methods of making thereof24 Sep 2026US 2026/0284121 A1Biostem Technologies, Inc.
Most cited
By later US patents
- Methods of making conditioned cell culture medium compositions249US 6,372,494 B1Advanced Tissue Sciences, Inc. · 2002
- Isolation and preservation of fetal and neonatal hematopoietic stem and progenitor cells of the blood and methods of therapeutic use242US 5,192,553 ABiocyte Corporation · 1993
- Preservation of fetal and neonatal hematopoietic stem and progenitor cells of the blood229US 5,004,681 ABiocyte Corporation · 1991
- Reconstituted basement membrane complex with biological activity212US 4,829,000 AThe United States of America, as represented by the Secretary, Department of Health and Human Services · 1989
- Grafts made from amniotic membrane; methods of separating, preserving, and using such grafts in surgeries207US 6,326,019 B12001