Inventor
GREENGARD CLAUDE A
US7 patents
Patents
7 patentsUS6996543B1Feb 7, 2006
System for protection of goods against counterfeiting
IBM150 citations99
US6397334B1May 28, 2002
Method and system for authenticating objects and object data
IBM199 citations99
US6069955AMay 30, 2000
System for protection of goods against counterfeiting
IBM234 citations99
US6525672B2Feb 25, 2003
Event-recorder for transmitting and storing electronic signature data
IBM282 citations98
US6737954B2May 18, 2004
Event-recorder for transmitting and storing electronic signature data
IBM66 citations96
US6501390B1Dec 31, 2002
Method and apparatus for securely determining aspects of the history of a good
IBM176 citations96
US6982625B2Jan 3, 2006
Event-recorder for transmitting and storing electronic signature data
IBM10 citations73