A.C. NIELSEN COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04H BROADCAST COMMUNICATION 154

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7647605 Coded/non-coded program audience measurement systemExpiredFeb 22, 08Jan 12, 10[H04H]
2008/0294,498 METHODS AND APPARATUS TO IMPROVE MARKET LAUNCH PERFORMANCEAbandonedMar 14, 08Nov 27, 08[G06Q]
6081269 Image processing system and method for generating data representing a number of points in a three-dimensional space from a plurality of two-dimensional images of the spaceExpiredJun 07, 95Jun 27, 00[G06T]
4943963 Data collection and transmission system with real time clockExpiredJan 19, 88Jul 24, 90[H04H]
4888638 System for substituting television programs transmitted via telephone linesExpiredOct 11, 88Dec 19, 89[H04H]
4764808 Monitoring system and method for determining channel reception of video receiversExpiredMay 05, 87Aug 16, 88[H04N, H04H]
4741108 Measurement systemExpiredDec 13, 85May 03, 88[G01B]
4644509 Ultrasonic audience measurement system and methodExpiredJan 23, 86Feb 17, 87[G01S]

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