Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009648 | Starch containing film ostomy pouches | Denis E. Keyes, Robert C. Hahn | 1991-04-23 |
| 4930942 | Method of disposal of articles by flushing | Denis E. Keyes | 1990-06-05 |
| 4830187 | Means for disposal of articles by flushing and ostomy pouches particularly suited for such disposal | Denis E. Keyes | 1989-05-16 |
| 4762738 | Means for disposal of articles by flushing and ostomy pouches particularly suited for such disposal | Denis E. Keyes | 1988-08-09 |