Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4636964 | Method and system for generating and adjusting a predetermined quantity of mutually independent direct current voltages | Ulrich Opara, Franz Selleschy | 1987-01-13 |
| 4432235 | Ultrasonic instrument with time and amplitude gate bar display | Peter Renzel | 1984-02-21 |