Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817140 | Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor | Ashileshwari N. Chandra, Liam D. Comerford | 1989-03-28 |