Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4291091 | Bubble memory optimization by adjusting properties of quartz film | Martin J. Casey, Barry F. Stein | 1981-09-22 |
| 4272347 | Bubble memory optimization by adjusting properties of quartz film | Martin J. Casey, Barry F. Stein | 1981-06-09 |