AT&T IPM CORP.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04M TELEPHONIC COMMUNICATION 14754
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 91348
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 84196
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 76279
 
 
 
H04Q SELECTING 6949
 
 
 
H04B TRANSMISSION 66137
 
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 57140
 
 
 
H04J MULTIPLEX COMMUNICATION 4774
 
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 36210
 
 
 
H03K PULSE TECHNIQUE 3396

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D655156 Packaging container with surface ornamentationOct 05, 09Mar 06, 12[0903]
D647624 Cervical collarAug 06, 10Oct 25, 11[2401]
D482233 Handle set for article of cookwareFeb 14, 03Nov 18, 03[0702]
6524645 Process for the electroless deposition of metal on a substrateOct 18, 94Feb 25, 03[B05D]
6481005 Event correlation feature for a telephone network operations support systemDec 20, 93Nov 12, 02[G06F]
6456410 Optical data communication system and methodDec 21, 94Sep 24, 02[H04J]
6389178 Method of downsampling documentsJul 28, 94May 14, 02[G06K]
6271892 Method and apparatus for compressing a sequence of information-bearing frames having at least two mediaJun 02, 94Aug 07, 01[H04N]
6211539 Semi-insulated indium phosphide based compositionsFeb 22, 94Apr 03, 01[H01L]
6211912 Method for detecting camera-motion induced scene changesFeb 04, 94Apr 03, 01[H04N]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6895253 Wireless indoor communications using antenna arraysExpiredMar 14, 95May 17, 05[H04B]
6324179 ATM network arranged to interface with STM in-band signalingExpiredDec 21, 94Nov 27, 01[H04L]
6260386 Optical fiber preform cleaning methodExpiredMar 10, 94Jul 17, 01[C03B]
6243460 Telephone with character keypadExpiredOct 14, 94Jun 05, 01[H04M]
6157612 Fast fading packet diversity transmission method and systemExpiredApr 03, 95Dec 05, 00[H04B]
5990934 Method and system for panoramic viewingExpiredApr 28, 95Nov 23, 99[H04N]
5953006 Methods and apparatus for detecting and displaying similarities in large data setsExpiredMar 18, 92Sep 14, 99[G06F]
5923367 Integral image recording and image playback systemExpiredJun 24, 94Jul 13, 99[H04N]
5918184 Method and apparatus for detecting a supervisory audio toneExpiredMay 20, 94Jun 29, 99[H04Q]
5878212 System for updating mapping or virtual host names to layer-3 address when multimedia server changes its usage state to busy or not busyExpiredJul 31, 95Mar 02, 99[182., G06F]
5873048 Locator and method for a wireless communication systemExpiredJul 27, 95Feb 16, 99[H04B]
5848073 Method and apparatus for predicting transmission system errors and failuresExpiredJun 20, 94Dec 08, 98[G06F]
5838698 Alignment of parity bits to eliminate errors in switching from an active to a standby processing circuitExpiredApr 28, 95Nov 17, 98[H04L]
5834709 Position sensing systems including magnetoresistive elementsExpiredApr 28, 94Nov 10, 98[G08C]
5828746 Telecommunications networkExpiredJun 07, 95Oct 27, 98[H04M]
5826256 Apparatus and methods for source code discoveryExpiredOct 22, 91Oct 20, 98[G06F]
5793354 Method and apparatus for an improved computer pointing deviceExpiredMay 10, 95Aug 11, 98[G09G]
5793527 High resolution viewing systemExpiredJun 30, 95Aug 11, 98[G02B]
5781625 System and apparatus for generating within the premises a dial tone for enhanced phone servicesExpiredJun 08, 95Jul 14, 98[H04Q]
5761291 Method of assigning telephone area codesExpiredJun 22, 94Jun 02, 98[H04M]

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Top Inventors for This Owner

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