Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700240 | Phacoemulsification system having ultrasonic power controlled by aspiration vacuum sensor | Billie John Barwick, Jr. | 1997-12-23 |
| 5591127 | Phacoemulsification method and apparatus | Billie John Barwick, Jr. | 1997-01-07 |