Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987593 | One-show blind signature systems | — | 1991-01-22 |
| 4949380 | Returned-value blind signature systems | — | 1990-08-14 |
| 4947430 | Undeniable signature systems | — | 1990-08-07 |
| 4926480 | Card-computer moderated systems | — | 1990-05-15 |
| 4914698 | One-show blind signature systems | — | 1990-04-03 |
| 4759063 | Blind signature systems | — | 1988-07-19 |
| 4759064 | Blind unanticipated signature systems | — | 1988-07-19 |
| 4529870 | Cryptographic identification, financial transaction, and credential device | — | 1985-07-16 |