A61P 15/18
Feminine contraceptives
A61P15/18 (Feminine contraceptives) appears on 1,051 US grants and 1,453 published applications in this corpus.
Search patents in A61P- Granted patents
- 1,051
- Published applications
- 1,453
- Assignees
- 546
- Inventors
- 2,359
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 11 | 0 |
| 1997 | 15 | 0 |
| 1998 | 27 | 0 |
| 1999 | 30 | 0 |
| 2000 | 41 | 0 |
| 2001 | 40 | 6 |
| 2002 | 47 | 63 |
| 2003 | 40 | 93 |
| 2004 | 27 | 91 |
| 2005 | 31 | 89 |
| 2006 | 34 | 89 |
| 2007 | 33 | 81 |
| 2008 | 44 | 119 |
| 2009 | 42 | 88 |
| 2010 | 76 | 92 |
| 2011 | 45 | 74 |
| 2012 | 67 | 73 |
| 2013 | 57 | 58 |
| 2014 | 44 | 53 |
| 2015 | 51 | 53 |
| 2016 | 25 | 44 |
| 2017 | 46 | 27 |
| 2018 | 36 | 46 |
| 2019 | 18 | 35 |
| 2020 | 21 | 38 |
| 2021 | 23 | 13 |
| 2022 | 18 | 30 |
| 2023 | 12 | 28 |
| 2024 | 11 | 32 |
| 2025 | 17 | 21 |
| 2026 | 4 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for providing birth control11 Aug 2026US 12,702,641 B2The Population Council, Inc.
- Contraceptive vaccine based on the sperm-associated protein catsper2 Jun 2026US 12,642,843 B2Rensselaer Polytechnic Institute
- Methods of contraception using nomegestrol acetate and estradiol5 May 2026US 12,616,703 B2Theramex Hq UK Limited
- Nanoparticles for targeted non-surgical spaying and neutering13 Jan 2026US 12,521,354 B2University of Georgia Research Foundation, Inc.
- Progestogen-only oral contraception2 Dec 2025US 12,485,128 B2Navad Life Sciences Pte
- Contraceptive compositions and methods for improved efficacy and modulation of side effects24 Sep 2026US 2026/0284077 A1Agile Therapeutics, Inc.
- Levonorgestrel and compositions comprising the same17 Sep 2026US 2026/0272825 A1
- Transdermal systems having polyisobutylene and methods of making and using them17 Sep 2026US 2026/0272847 A1Viatris GmbH & Co. KG
- Multi-component intravaginal ring6 Aug 2026US 2026/0224475 A1
- On demand female contraceptive30 Apr 2026US 2026/0115205 A1
Most cited
By later US patents
- Injectable or implantable biomaterials for filling or blocking lumens and voids of the body846US 5,752,974 ACollagen Corporation · 1998
- Water-soluble non-antigenic polymer linkable to biologically active material304US 6,113,906 AEnzon, Inc. · 2000
- Dermal penetration enhancers and drug delivery systems involving same297US 6,299,900 B1Monash University · 2001
- Methods and products for stimulating the immune system using immunotherapeutic oligonucleotides and cytokines290US 6,218,371 B1University of Iowa Research Foundation · 2001
- Non-antigenic branched polymer conjugates264US 5,919,455 AEnzon, Inc. · 1999