OCTEL COMMUNICATIONS CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04M TELEPHONIC COMMUNICATION 4159
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 196
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6522726 Speech-responsive voice messaging system and methodFeb 14, 00Feb 18, 03[H04M]
6466909 Shared text-to-speech resourceJun 28, 99Oct 15, 02[G10L]
6396907 Unified messaging system and method providing cached message streamsOct 09, 97May 28, 02[H04M]
5940478 Method and system for extended addressing plansMay 31, 96Aug 17, 99[H04M]
5881136 Fax overflow systemJul 01, 97Mar 09, 99[H04M]
5740230 Directory management system and methodMay 31, 96Apr 14, 98[H04L, G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5179585 Integrated voice messaging/voice response systemExpiredJan 16, 91Jan 12, 93[H04M]
5155772 Data compression system for voice dataExpiredDec 11, 90Oct 13, 92[G10L, H04B]
4521647 Tone detection system and methodExpiredFeb 17, 84Jun 04, 85[H04M]

Top Inventors for This Owner

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