The Exchange System Limited Partnership
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 29, 1992 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 317 Total Citation Count
- Jun 19, 1987 Earliest Filing
- 8 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5175766 Signalling scheme for controlling data encryption device in an electronic fund transaction processing systemExpiredJul 25, 91Dec 29, 92[H04L]
5123047 Method of updating encryption device monitor code in a multichannel data encryption systemExpiredJan 25, 91Jun 16, 92[H04K]
5022076 Redundant encryption processor arrangement for use in an electronic fund transfer networkExpiredDec 09, 88Jun 04, 91[H04L]
5016277 Encryption key entry method in a microcomputer-based encryption systemExpiredDec 09, 88May 14, 91[H04L, H04K]
5008936 Backup/restore technique in a microcomputer-based encryption systemExpiredDec 09, 88Apr 16, 91[H04L]
4997288 Power supply arrangement for fault-tolerant operation in a microcomputer-based encryption systemExpiredDec 09, 88Mar 05, 91[H04L]
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