Derek Nelson

Follow

Person

Lexington, KY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for providing copy protection using a transmit...
- Patent number 8,250,597
- Issue date Aug 21, 2012
- Rovi Solutions Corporation
- Peter J. Wonfor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing copy protection using a transmit...
- Patent number 7,395,545
- Issue date Jul 1, 2008
- Macrovision Corporation
- Peter J. Wonfor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Generational copy control of a video signal
- Patent number 6,701,062
- Issue date Mar 2, 2004
- Macrovision Corporation
- Johan Cornelis Talstra
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for controlling copy protection in digital video networks
- Patent number 6,381,747
- Issue date Apr 30, 2002
- Macrovision Corp.
- Peter J. Wonfor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for providing copy protection using a transmit...
- Publication number 20080178235
- Publication date Jul 24, 2008
- Peter J. Wonfor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for providing copy protection using a transmit...
- Publication number 20020172362
- Publication date Nov 21, 2002
- Peter J. Wonfor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE