Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617867 | Tonometer mounting device | Robert D. Butterfield, Charles R. Holdaway, Stephen A. Martin, Stanley Boyer | 1997-04-08 |
| 5271405 | Wrist mount apparatus for use in blood pressure tonometry | Stanley Boyer, Stephen A. Martin, Charles R. Holdaway, Robert D. Butterfield | 1993-12-21 |