Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730958 | Method of treatment of gastroesophageal reflux disease by enhancement of salivary esophageal protection due to mastication | Richard W. McCallum | 1998-03-24 |
| 5314409 | Catheter for esophageal perfusion | Richard W. McCallum, Ravinder K. Mittal | 1994-05-24 |