United States Patent and Trademark Office, Patent Assignment 21601/215:
Assignment Of Assignors Interest

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Assignors
Assignee

Wistendahl, Douglass A.
Paperwork Executed April 2, 2008

Chong, Leighton K.
Paperwork Executed April 2, 2008

Transfer

Recorded
September 29, 2008

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Intellectual Ventures Fund 50 LLC

Intellectual Ventures Fund 50 LLC
7251 W. Lake Mead Blvd., Suite 300
Las Vegas, NV 89128

Patents
Correspondent

System For Mapping Hot Spots In Media Content For Interactive Digital Media Program

USX0Patent Application No. 08536107, Filed September 29, 1995

USB1Utility Patent No. 5708845, Issued January 13, 1998

System For Converting Media Content For Interactivetv Use

USX0Patent Application No. 08933666, Filed September 19, 1997

USB1Utility Patent No. 6496981, Issued December 17, 2002

System for converting existing TV content to interactive TV programs operated with a standard remote control and TV set-top box

USX0Patent Application No. 09815020, Filed March 21, 2001

USA1Application Publication No. 20020056136, Issued May 9, 2002

System For Converting Tv Content To Interactive Tv Game Program Operated With A Standard Remote Control And Tv Set-top Box

USX0Patent Application No. 10463949, Filed June 16, 2003

USB1Utility Patent No. 7577978, Issued August 18, 2009

Robert J. Irvine, III.
McDonnell Boehnen Hulbert & Berghoff LLP
300 South Wacker Drive
Chicago, IL 60606
Phone: +1 312 913 0001
E-Mail: irvine@mbhb.com

Updated August 18, 2009

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