James R. Butterworth

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Rancho Palos Verdes, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Single-wire multiswitch and channelized RF cable test meter
- Patent number 7,912,427
- Issue date Mar 22, 2011
- The DIRECTV Group, Inc.
- Joseph Santoru
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Antenna pointing aid
- Patent number 7,663,560
- Issue date Feb 16, 2010
- The DIRECTV Group, Inc.
- James R. Butterworth
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Direct broadcast receiver utilizing LNB in cascade
- Patent number 7,149,470
- Issue date Dec 12, 2006
- The DIRECTV Group, Inc.
- Dipak M. Shah
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR AUTHENTICATING A USER DEVICE
- Publication number 20090125950
- Publication date May 14, 2009
- Kapil Chaudhry
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Single-wire multiswitch and channelized RF cable test meter
- Publication number 20080209478
- Publication date Aug 28, 2008
- The DIRECTV Group, Inc.
- Joseph Santoru
- H04 - ELECTRIC COMMUNICATION TECHNIQUE