Warner Music Group, Inc.
Patent Owner
Stats
- 18 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 24, 2012 most recent publication
Details
- 18 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 211 Total Citation Count
- May 05, 1997 Earliest Filing
- 2 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
8166093 Method and apparatus for processing multimedia programs for play on incompatible devicesFeb 08, 02Apr 24, 12[H04N, G06F]
7454257 Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generatorFeb 08, 01Nov 18, 08[G06F]
7203154 Recording and playback of multi-channel digital audio having different resolutions for different channelsDec 06, 04Apr 10, 07[G11B]
7197458 Method and system for verifying derivative digital files automaticallyMay 09, 02Mar 27, 07[H04L]
6898173 Recording and playback of multi-channel digital audio having different resolutions for different channelsMar 29, 03May 24, 05[G11B]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2009/0074,213 APPARATUS AND METHOD FOR DOWN CONVERTING MULTICHANNEL PROGRAMS TO DUAL CHANNEL PROGRAMS USING A SMART COEFFICIENT GENERATORAbandonedMay 23, 08Mar 19, 09[H04R]
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