AT&T Labs, Inc.
Patent Owner
Stats
- 28 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Nov 12, 2013 most recent publication
Details
- 28 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 3,609 Total Citation Count
- Feb 24, 1982 Earliest Filing
- 139 Expired/Abandoned/Withdrawn Patents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
8144852 Method and apparatus for spectral containment over telephone service linesDec 14, 07Mar 27, 12[H04M]
8064549 Joint demodulation using a Viterbi equalizer having an adaptive total number of statesMar 27, 09Nov 22, 11[H04L]
8041011 Device and method for suppressing DSL signal echo induced by bridgetapSep 28, 06Oct 18, 11[H04M]
7949709 Internal substitution bi-level addressing for compatible public networksDec 17, 09May 24, 11[H04L, G06F]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
8036348 Sequential presentation of long instructions in an interactive voice response systemExpiredOct 14, 08Oct 11, 11[H04M, H04L]
7656859 Internal substitution bi-level addressing for compatible public networksExpiredApr 24, 06Feb 02, 10[H04L, G06F]
7653194 Geographical call routing for a non-emergency calling serviceExpiredOct 03, 08Jan 26, 10[H04M]
7505575 Method and system for processing telephone calls via a remote tie-lineExpiredAug 28, 07Mar 17, 09[H04M]
7499536 Apparatus and method for intelligent call routing and call returnExpiredSep 09, 04Mar 03, 09[H04M]
2008/0228,736 SYSTEM AND METHOD FOR CREATING AND ACCESSING OUTGOING TELEPHONE CALL LOGAbandonedMar 25, 08Sep 18, 08[G06F]
2008/0089,345 CONTROLLER BASED CALL CONTROL FOR ATM SVC SIGNALINGAbandonedNov 02, 07Apr 17, 08[H04L]
7352857 Method and apparatus for spectral containment over telephone service linesExpiredNov 01, 05Apr 01, 08[H04M]
2007/0286,200 FAULT TOLERANT ATM-BASED DISTRIBUTED VIRTUAL TANDEM SWITCHING SYSTEM AND METHODAbandonedApr 24, 07Dec 13, 07[H04L]
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