| 1 |
| Patent ID | Title | Date Filed |
| 4578530 | End-to-end encryption system and method of operation
| December 7, 1983 |
| 4498000 | Security method and device for communicating confidential data via an intermediate stage
| August 12, 1982 |
| 4468667 | Detection of an identification signal contained within a composite signal, without false signal recognition
| September 2, 1981 |
| 4467139 | Process and system for transmission of signed messages
| March 12, 1981 |
| 4438824 | Apparatus and method for cryptographic identity verification
| April 22, 1981 |
| 4423287 | End-to-end encryption system and method of operation
| June 26, 1981 |
| 4390968 | Automated bank transaction security system
| December 30, 1980 |
| 4389266 | Preparation of glass container for thermoplastic closure
| January 15, 1982 |
| 4386233 | Crytographic key notarization methods and apparatus
| September 29, 1980 |
| 4376299 | Data center for remote postage meter recharging system having physically secure encrypting apparatus and employing encrypted seed number signals
| July 14, 1980 |
| 4357729 | Vacuum cleaner control
| January 26, 1981 |
| 4328414 | Multilevel security apparatus and method
| December 11, 1979 |
| 4320387 | Information communicating apparatus and method
| December 19, 1979 |
| 4317957 | System for authenticating users and devices in on-line transaction networks
| March 10, 1980 |
| 4315101 | Method and apparatus for securing data transmissions
| October 9, 1979 |
| 4314097 | Authenticator device for precluding compensating text modifications in transmitted messages
| March 10, 1980 |
| 4309569 | Method of providing digital signatures
| September 5, 1979 |
| 4304990 | Multilevel security apparatus and method
| February 4, 1980 |
| 4304961 | Authenticator code generator
| March 3, 1980 |
| 4302810 | Method and apparatus for secure message transmission for use in electronic funds transfer systems
| December 28, 1979 |
| 4295039 | Method and apparatus for achieving secure password verification
| December 3, 1979 |
| 4288659 | Method and means for securing the distribution of encoding keys
| May 21, 1979 |
| 4283599 | Method and apparatus for securing data transmissions
| February 5, 1979 |
| 4281215 | Method and apparatus for securing data transmissions
| May 3, 1978 |
| 4268715 | Method and apparatus for securing data transmissions
| January 16, 1979 |
| 4259720 | Security system for electronic funds transfer system
| January 9, 1978 |
| 4253158 | System for securing postage printing transactions
| March 28, 1979 |
| 4251216 | Dental splinting device
| January 28, 1980 |
| 4234932 | Security system for remote cash dispensers
| September 5, 1978 |
| 4223403 | Cryptographic architecture for use with a high security personal identification system
| June 30, 1978 |
| 4214230 | Personal identification system
| January 19, 1978 |
| 4208575 | Credit card or check validator
| January 22, 1979 |
| 4206315 | Digital signature system and apparatus
| January 4, 1978 |
| 4198619 | Programmable security system and method
| February 21, 1978 |
| 4186871 | Transaction execution system with secure encryption key storage and communications
| March 1, 1978 |
| 4025760 | Security means for transaction terminal system
| August 14, 1975 |
| 4023013 | On-line verification system for identification card or the like
| December 29, 1975 |
| 4004089 | Programmable cryptic device for enciphering and deciphering data
| February 28, 1975 |
| 3956615 | Transaction execution system with secure data storage and communications
| June 25, 1974 |
| 1 |