Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661807 | Authentication system using one-time passwords | Richard Henry Guski, Raymond Craig Larson, Donald B. Johnson, Don Coppersmith | 1997-08-26 |
| 5642421 | Encryption of low data content ATM cells | James P. Gray, Mohammad Peyravian, Gene Tsudik | 1997-06-24 |
| 5604801 | Public key data communications system under control of a portable security device | George M. Dolan, Christopher J. Holloway | 1997-02-18 |
| 5592553 | Authentication system using one-time passwords | Richard Henry Guski, Raymond Craig Larson, Donald B. Johnson, Don Coppersmith | 1997-01-07 |