Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D335534 | Gastrostomy tube | William H. Hirsch | 1993-05-11 |
| 5098378 | Method of jejunal feeding | Carl Joseph Piontek, William H. Hirsch, Arthur A. Dahl | 1992-03-24 |
| 5080650 | Gastrostomy tube | William H. Hirsch | 1992-01-14 |
| 5071405 | Gastrostomy tube | Carl Joseph Piontek, William H. Hirsch, Arthur A. Dahl | 1991-12-10 |
| 5057093 | Medical device improvements for enteral feeding | Robert Donald Clegg, Ronald A. Coules, Robert Scott Osborne, Patricia A. Schneider | 1991-10-15 |
| 4972845 | Stoma measuring device | Ronald M. Isaac | 1990-11-27 |
| D308576 | Y-connector or similar article for enteral feeding tubes | — | 1990-06-12 |