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Stuart T.F. Huang
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Washington, DC, US
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Patents Grants
last 30 patents
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Patent Grant
Multi-step digital signature method and system
Patent number
8,364,967
Issue date
Jan 29, 2013
CQRCert, LLC
Frank W. Sudia
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Multi-step digital signature method and system
Patent number
6,209,091
Issue date
Mar 27, 2001
CertCo Inc.
Frank W. Sudia
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Multi-step digital signature method and system
Patent number
5,825,880
Issue date
Oct 20, 1998
Frank W. Sudia
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Multi-step digital signature method and system
Publication number
20090217034
Publication date
Aug 27, 2009
Frank W. Sudia
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Multi-step digital signature method and system
Publication number
20050204129
Publication date
Sep 15, 2005
Frank W. Sudia
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for roaming use of cryptographic values
Publication number
20020013898
Publication date
Jan 31, 2002
Frank W. Sudia
G06 - COMPUTING CALCULATING COUNTING