Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870971 | Transmit focus generator for ultrasound imaging | Lawrence D. Acker | 1989-10-03 |
| 4841492 | Apodization of ultrasound transmission | — | 1989-06-20 |
| 4821706 | High voltage pulse power drive | Israel D. Schleicher | 1989-04-18 |