Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE30957 | Variant key matrix cipher system | — | 1982-06-01 |
| 4326098 | High security system for electronic signature verification | Willard G. Bouricius | 1982-04-20 |
| 4316055 | Stream/block cipher crytographic system | — | 1982-02-16 |
| 4195196 | Variant key matrix cipher system | — | 1980-03-25 |
| 4195200 | Key controlled block-cipher cryptographic system employing a multidirectional shift matrix | — | 1980-03-25 |