AT&T SUBMARINE SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
H01S DEVICES USING STIMULATED EMISSION290
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES1108
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04J MULTIPLEX COMMUNICATION 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6028684 Path to provide OTDR measurements of an optical transmission system that includes optical isolatorsOct 23, 96Feb 22, 00[H04B]
6014479 High channel density wavelength division multiplex (WDM) optical transmission system and method with negligible four-wave mixing (FWM) penaltyOct 10, 96Jan 11, 00[G02B, H01S, H04J]
5969806 Chromatic dispersion measurement in a fiber optic cableJun 30, 97Oct 19, 99[G01N]
5966206 Interlocked high power fiber system using OTDROct 10, 96Oct 12, 99[G01N]
5926263 Side-tone OTDR for in-service optical cable monitoringOct 10, 96Jul 20, 99[G01N]
5764405 Lossless optical transmission system architecture with non-failing optical amplifiersOct 10, 96Jun 09, 98[G01S]
5757488 Optical frequency stability controllerOct 10, 96May 26, 98[G01B]
5719697 Method and apparatus for combining add/drop optical signal lines from a plurality of branching unitsOct 10, 96Feb 17, 98[H01S]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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