Inventor · disambiguated record
Derek T. Nelson
Also filed as: NELSON DEREK · NELSON DEREK T
4 granted patents·482 citations·filing 1997–2008
81Inventor score
Top patents by PatentIndex Score
4 records- 0195US6381747B1Method for controlling copy protection in digital video networksMACROVISION CORP·Filed 1997·Granted Apr 30, 2002·407 cites·52 claims
- 0280US7395545B2Method and apparatus for providing copy protection using a transmittal mode commandMACROVISION CORP·Filed 2002·Granted Jul 1, 2008·19 cites·17 claims
- 0372US6701062B1Generational copy control of a video signalMACROVISION CORP·Filed 1999·Granted Mar 2, 2004·53 cites·17 claims
- 0466US8250597B2Method and apparatus for providing copy protection using a transmittal mode commandWONFOR PETER J·Filed 2008·Granted Aug 21, 2012·3 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →