Inventor · disambiguated record
Sigfredo I. Nin
Also filed as: NIN SIGFREDO I · NIN SIGFREDO ISMAEL
15 granted patents·1 pending application·261 citations·filing 1992–2016
93Inventor score
Top patents by PatentIndex Score
16 records- 0193US7516331B2Tamper-resistant trusted java virtual machine and method of using the sameIBM·Filed 2003·Granted Apr 7, 2009·89 cites·33 claims
- 0291US7747877B2Tamper-resistant trusted Java virtual machine and method of using the sameIBM·Filed 2009·Granted Jun 29, 2010·27 cites·21 claims
- 0386US6888944B2Method for assigning encryption keysIBM·Filed 2001·Granted May 3, 2005·30 cites·24 claims
- 0485US6883097B1Coincidence-free media key block for content protection for recordable mediaIBM·Filed 2000·Granted Apr 19, 2005·35 cites·7 claims
- 0578US8656178B2Method, system and program product for modifying content usage conditions during content distributionFOSTER ERIC M·Filed 2002·Granted Feb 18, 2014·15 cites·24 claims
- 0675US9520993B2Renewable traitor tracingJIN HONGXIA·Filed 2005·Granted Dec 13, 2016·5 cites·20 claims
- 0771US7860246B2System and method for protecting data in a secure systemIBM·Filed 2006·Granted Dec 28, 2010·4 cites·1 claims
- 0868US8280043B2System and method for protecting data in a secure systemCERRUTI JULIAN A·Filed 2008·Granted Oct 2, 2012·5 cites·18 claims
- 0968US7523307B2Method for ensuring content protection and subscription complianceIBM·Filed 2002·Granted Apr 21, 2009·9 cites·13 claims
- 1066US8571209B2Recording keys in a broadcast-encryption-based systemBELLWOOD THOMAS ALEXANDER·Filed 2009·Granted Oct 29, 2013·4 cites·15 claims
- 1157US8782440B2Extending the number of applications for accessing protected content in a media using media key blocksNIN SIGFREDO I·Filed 2012·Granted Jul 15, 2014·1 cites·20 claims
- 1252US11108569B2Renewable traitor tracingIBM·Filed 2016·Granted Aug 31, 2021·0 cites·20 claims
- 1348US8391481B2Rebinding of content title keys in clusters of devices with distinct security levelsDEEN ROBERT GLENN·Filed 2009·Granted Mar 5, 2013·0 cites·17 claims
- 1447US6137494AMethod and means for evaluating a tetrahedral linear interpolation functionIBM·Filed 1997·Granted Oct 24, 2000·18 cites·8 claims
- 1545US5751926AFunction approximation using a centered cubic packing with tetragonal disphenoid extractionIBM·Filed 1992·Granted May 12, 1998·19 cites·13 claims
- 1638US2004128259A1Method for ensuring privacy in electronic transactions with session key blocksFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →