Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887606 | Apparatus for use in cannulation of blood vessels | Alan Robert Selfridge | 1989-12-19 |
| 4794931 | Catheter apparatus, system and method for intravascular two-dimensional ultrasonography | — | 1989-01-03 |