Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779244 | Ultrasonic transducer and attenuating material for use therein | Axel F. Brisken | 1988-10-18 |
| 4528652 | Ultrasonic transducer and attenuating material for use therein | Axel F. Brisken, Claudio I. Zanelli | 1985-07-09 |
| 4425525 | Ultrasonic transducer array shading | Lowell Scott Smith, Axel F. Brisken | 1984-01-10 |