Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6923185 | Custom molded cervical caps and method and kit for forming same | — | 2005-08-02 |
| 5980804 | Method for forming a custom molded cervical cap | — | 1999-11-09 |
| 5624472 | Method for dry grinding with improved magnesium oxychloride cement bond containing graphite | Allen T. Donahue | 1997-04-29 |
| 5510064 | Method of forming a custom molded cervical cap | — | 1996-04-23 |
| 5460635 | Magnesium oxychloride cement containing graphite | Allen T. Donahue | 1995-10-24 |
| 5123424 | Cervical cap | — | 1992-06-23 |
| 5027830 | Method of preparing a cervical cap | — | 1991-07-02 |
| 4961436 | Contraceptive cervical cap | — | 1990-10-09 |