Ou-Yang; Guo-Ling

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ou-Yang; Guo-Ling.The latest application filed is for "system and method for digitally signing an electronic document".

Company Profile

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Ou-Yang; Guo-Ling - Shenzhen CN
OU-YANG; GUO-LING - Shenzhen City CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
System and method for digitally signing an electronic document Grant 8,010,796 - Lee , et al. August 30, 2	2011-08-30
System and method for digitally signing electronic documents Grant 7,958,364 - Lee , et al. June 7, 2	2011-06-07
System And Method For Digitally Signing An Electronic Document App 20090164791 - LEE; CHUNG-I ; et al.	2009-06-25
System And Method For Digitally Signing Electronic Documents App 20090044019 - LEE; CHUNG-I ; et al.	2009-02-12
System And Method For Helping And Verifying A Signer To Sign Electronic Orders App 20080162355 - LEE; CHUNG-I ; et al.	2008-07-03
System And Method For Verifying Electronic Signature Of A Document App 20080052520 - LEE; CHUNG-I ; et al.	2008-02-28
System And Method For Automatically Signing Electronic Documents App 20080046743 - LEE; CHUNG-I ; et al.	2008-02-21
System And Method For Auditing Hazardous Substances Of A Product App 20070160721 - LEE; CHUNG-I ; et al.	2007-07-12
System And Method For Managing Product Composition Testing App 20070162290 - Lee; Chung-I ; et al.	2007-07-12

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