Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6047066 | Communication method and device | Daniel P. Brown, Frank C. Pennypacker | 2000-04-04 |
| 6014446 | Apparatus for providing improved encryption protection in a communication system | — | 2000-01-11 |
| 5940799 | System and method for securing speech transactions | Eugene J. Bruckert, Daniel P. Brown | 1999-08-17 |
| 5841864 | Apparatus and method for authentication and session key exchange in a communication system | Jeffrey T. Klayman, Christopher Clanton | 1998-11-24 |
| 5793866 | Communication method and device | Daniel P. Brown, Frank C. Pennypacker | 1998-08-11 |
| 5689563 | Method and apparatus for efficient real-time authentication and encryption in a communication system | Daniel P. Brown, Jeffrey C. Smolinske | 1997-11-18 |
| 5668875 | Method and apparatus for authentication in a communication system | Daniel P. Brown | 1997-09-16 |
| 5572193 | Method for authentication and protection of subscribers in telecommunications systems | Mary B. Flanders, Larry C. Puhl | 1996-11-05 |
| 5564106 | Method for providing blind access to an encryption key | Larry C. Puhl, Ezzat A. Dabbish | 1996-10-08 |
| 5537474 | Method and apparatus for authentication in a communication system | Daniel P. Brown | 1996-07-16 |
| 5467398 | Method of messaging in a communication system | Jennifer Pierce, Daniel P. Brown, Jay R. Krebs | 1995-11-14 |
| 5455863 | Method and apparatus for efficient real-time authentication and encryption in a communication system | Daniel P. Brown, Jeffrey C. Smolinske | 1995-10-03 |
| 5410602 | Method for key management of point-to-point communications | Daniel P. Brown, Larry C. Puhl | 1995-04-25 |
| 5365585 | Method and apparatus for encryption having a feedback register with selectable taps | Larry C. Puhl | 1994-11-15 |
| 5319712 | Method and apparatus for providing cryptographic protection of a data stream in a communication system | James J. Kosmach, Jeffrey C. Smolinske | 1994-06-07 |
| 5239294 | Method and apparatus for authenication and protection of subscribers in telecommunication systems | Mary B. Flanders, Larry C. Puhl | 1993-08-24 |
| 5221838 | Electronic wallet | Jose Gutman, Jim Wright, Larry C. Puhl | 1993-06-22 |
| 5060265 | Method of protecting a linear feedback shift register (LFSR) output signal | — | 1991-10-22 |