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William C. Martin
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Concord, NC, US
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last 30 patents
Information
Patent Grant
Cryptographic facility environment backup/restore and replication i...
Patent number
5,265,164
Issue date
Nov 23, 1993
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Public key cryptosystem key management based on control vectors
Patent number
5,200,999
Issue date
Apr 6, 1993
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method to establish and enforce a network cryptographic security po...
Patent number
5,164,988
Issue date
Nov 17, 1992
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Hybrid public key algorithm/data encryption algorithm key distribut...
Patent number
5,142,578
Issue date
Aug 25, 1992
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for controlling the use of a public key, based...
Patent number
5,073,934
Issue date
Dec 17, 1991
International Business Machines Corporation
Stephen M. Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secure key management using programable control vector checking
Patent number
5,007,089
Issue date
Apr 9, 1991
International Business Machines Corporation
Stephen M. Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for character recognition systems
Patent number
4,876,735
Issue date
Oct 24, 1989
International Business Machines Corporation
William C. Martin
G06 - COMPUTING CALCULATING COUNTING