STEPHENS, KELLY D

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2273
 
 
 
H04M TELEPHONIC COMMUNICATION 2156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7546141 Hybrid communication system and methodJan 21, 05Jun 09, 09[H04M, H04B]
7031439 Audio file transmission methodAug 05, 03Apr 18, 06[H04M]
6680923 Communication system and methodMay 23, 00Jan 20, 04[H04L]
6385306 Audio file transmission methodMar 02, 00May 07, 02[H04L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6839412 Audio file transmission methodExpiredAug 05, 03Jan 04, 05[H04L]
6765996 Audio file transmission methodExpiredAug 31, 01Jul 20, 04[H04L]

Top Inventors for This Owner

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