Inventor
SPAGNA RICHARD L
US8 patents
Patents
8 patentsUS6983371B1Jan 3, 2006
Super-distribution of protected digital content
IBM480 citations98
US7228437B2Jun 5, 2007
Method and system for securing local database file of local content stored on end-user system
IBM148 citations97
US7110984B1Sep 19, 2006
Updating usage conditions in lieu of download digital rights management protected content
IBM182 citations97
US6611812B2Aug 26, 2003
Secure electronic content distribution on CDS and DVDs
IBM824 citations97
US7487128B2Feb 3, 2009
Updating usage conditions in lieu of download digital rights management protected content
IBM69 citations96
US6859791B1Feb 22, 2005
Method for determining internet users geographic region
IBM280 citations93
US7590866B2Sep 15, 2009
Super-distribution of protected digital content
IBM41 citations92
US6742177B1May 25, 2004
Method and system for secure debugging of a secure software module
IBM29 citations87