Assignee
ECD SYSTEMS INC
US·7 granted patents·578 citations·filing 2001–2004
Top patents by PatentIndex Score
7 records- 0197US7328453B2Systems and methods for the prevention of unauthorized use and manipulation of digital contentECD SYSTEMS INC·Filed 2002·Granted Feb 5, 2008·335 cites·28 claims
- 0295US7447907B2Method and system for data delivery and reproductionECD SYSTEMS INC·Filed 2001·Granted Nov 4, 2008·78 cites·26 claims
- 0395US7237123B2Systems and methods for preventing unauthorized use of digital contentECD SYSTEMS INC·Filed 2001·Granted Jun 26, 2007·115 cites·35 claims
- 0483US7376073B2Optical storage medium having distortion regions, and a method of modifying an optical storage medium to include distortion regionsECD SYSTEMS INC·Filed 2001·Granted May 20, 2008·16 cites·80 claims
- 0579US7565697B2Systems and methods for preventing unauthorized use of digital contentECD SYSTEMS INC·Filed 2001·Granted Jul 21, 2009·25 cites·129 claims
- 0668US7562396B2Systems and methods for media authenticationECD SYSTEMS INC·Filed 2002·Granted Jul 14, 2009·6 cites·110 claims
- 0757US7643393B2Systems and methods for optical media modificationECD SYSTEMS INC·Filed 2004·Granted Jan 5, 2010·3 cites·37 claims
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