Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5412722 | Encryption key management | Mark J. Sherly, Hans Christopher Sowa | 1995-05-02 |
| 5161189 | Encryption and decryption of chained messages | Michael W. Bright, Hans Christopher Sowa | 1992-11-03 |
| 4893308 | Method and apparatus for time companding a digital voice signal | Alan L. Wilson, Michael W. Bright, Eric F. Ziolko, David L. Weiss | 1990-01-09 |
| 4893339 | Secure communication system | Michael W. Bright, Eric F. Ziolko, Alan L. Wilson, Harry A. Hennen, David L. Weiss | 1990-01-09 |