Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5098378 | Method of jejunal feeding | Carl Joseph Piontek, Kent E. Iversen, William H. Hirsch | 1992-03-24 |
| 5071405 | Gastrostomy tube | Carl Joseph Piontek, Kent E. Iversen, William H. Hirsch | 1991-12-10 |