Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661799 | Apparatus and storage medium for decrypting information | Robert H. Nagel | 1997-08-26 |
| 5592549 | Method and apparatus for retrieving selected information from a secure information source | Robert H. Nagel | 1997-01-07 |
| 5473687 | Method for retrieving secure information from a database | Robert H. Nagel | 1995-12-05 |
| 5394469 | Method and apparatus for retrieving secure information from mass storage media | Robert H. Nagel | 1995-02-28 |
| 5247575 | Information distribution system | Peter J. Sprague | 1993-09-21 |