A61K 35/52
Sperm
Official title: Sperm; Prostate; Seminal fluid; Leydig cells of testes
A61K35/52 (Sperm) appears on 116 US grants and 120 published applications in this corpus.
Search patents in A61K- Granted patents
- 116
- Published applications
- 120
- Assignees
- 97
- Inventors
- 298
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 4 |
| 2003 | 3 | 3 |
| 2004 | 1 | 5 |
| 2005 | 3 | 4 |
| 2006 | 0 | 1 |
| 2007 | 3 | 2 |
| 2008 | 0 | 5 |
| 2009 | 0 | 2 |
| 2010 | 5 | 6 |
| 2011 | 2 | 7 |
| 2012 | 0 | 2 |
| 2013 | 4 | 4 |
| 2014 | 1 | 4 |
| 2015 | 3 | 6 |
| 2016 | 1 | 4 |
| 2017 | 0 | 5 |
| 2018 | 5 | 7 |
| 2019 | 3 | 9 |
| 2020 | 4 | 12 |
| 2021 | 2 | 7 |
| 2022 | 6 | 4 |
| 2023 | 0 | 5 |
| 2024 | 6 | 3 |
| 2025 | 1 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pharmaceutical composition for preventing or treating myositis, comprising isolated mitochondria as active ingredient26 May 2026US 12,636,316 B2Paean Biotechnology Inc.
- Methods to differentiate stem cells into hormone-producing cells17 Feb 2026US 12,551,511 B2JangoBio, LLC
- Method for separating mammalian sperm, artificial insemination method, and in vitro fertilization method4 Feb 2025US 12,213,860 B2Hiroshima University
- Methods for use of sex sorted semen to improve genetic management in swine22 Oct 2024US 12,121,547 B2Inguran, LLC
- Stem cell-derived Sertoli-like cell, preparation method therefor, and use thereof8 Oct 2024US 12,110,509 B2Cha University Industry-Academic Cooperation Foundation
- Methods for diagnosis and treatment of infertility10 Sep 2026US 2026/0266836 A1Oregon Health & Science University
- Allogenic implants for treatment of inflammatory conditions2 Jul 2026US 2026/0183342 A1Robles Bioceutics LLC
- Method of modifying cells11 Jun 2026US 2026/0159826 A1
- Methods of treating male hypogonadism with hormone-producing organoids21 May 2026US 2026/0137728 A1
- Method for preparing human pluripotent stem cell-derived leydig-like cells, and human pluripotent stem cell-derived leydig-like cell population12 Jun 2025US 2025/0186507 A1National University Corporation Kobe University
Most cited
By later US patents
- Method to preselect the sex of offspring189US 5,135,759 AThe United States of America as represented by the Secretary of Agriculture · 1992
- Method for x and y spermatozoa separation93US 4,999,283 AUniversity of Kentucky Research Foundation · 1991
- Sex-associated membrane antibodies and their use for increasing the probability that offspring will be of a desired sex82US 5,021,244 ACytogam, Inc. · 1991
- Methods for determining antibodies specific for sex associated sperm membrane proteins75US 5,660,997 ACytogam, Inc. · 1997
- Methods and compositions to improve germ cell and embryo survival and function74US 6,140,121 AAdvanced Reproduction Technologies, Inc. · 2000