Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612930 | Ultrasonic transducer | Richard E. Berris, Jr. | 1997-03-18 |
| 5492014 | Ultrasonic transducer for monitoring acoustic emissions | — | 1996-02-20 |
| 5176034 | Ultrasonic transducer | Richard E. Berris, Jr. | 1993-01-05 |
| 5016474 | Ultrasonic transducer | Richard E. Berris, Jr. | 1991-05-21 |
| 4907454 | Ultrasonic transducer | Richard E. Berris, Jr. | 1990-03-13 |
| 4757713 | Ultrasonic transducer | Richard E. Berris, Jr. | 1988-07-19 |
| 4649749 | Ultrasonic tranducer | Richard E. Berris, Jr. | 1987-03-17 |
| 4470001 | Induction motor control | Robert J. Resch, Richard E. Berris, Jr. | 1984-09-04 |