PHONEX CORPORATION

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Technologies

Intl Class Technology # of Patents Rank
 
 
 
H04B TRANSMISSION 1167
 
 
 
H04J MULTIPLEX COMMUNICATION 1107
 
 
 
H04M TELEPHONIC COMMUNICATION 1133
 
 
 
H04Q SELECTING 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5,911,119 Secure cordless telephone extension system and methodOct 15, 96Jun 08, 99[H04M, H04Q]
5,319,634 Multiple access telephone extension systems and methodsOct 07, 91Jun 07, 94[H04J, H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
2010/0173,594 METHOD AND SYSTEM FOR RF COMMUNICATION FREQUENCY ARBITRATIONJan 05, 10Jul 08, 10[H04B]
2002/0049,036 WIRELESS PHONE/DATA JACK USING 49 MHZ RF TECHNOLOGYOct 13, 99Apr 25, 02[H04Q]
5,029,198 Telephone call responding system and control method and device thereforJan 17, 90Jul 02, 91[H04M]
4,523,307 Power line carrier multi telephone extension system for full duplex conferencing and intercom between telephonesNov 30, 82Jun 11, 85[H04M]
4,514,594 Power line carrier telephone extension system for full duplex conferencing between telephones and having telephone call hold capabilitySep 30, 82Apr 30, 85[H04M]
4,495,386 Telephone extension system utilizing power line carrier signalsNov 07, 83Jan 22, 85[H04M]
4,479,033 Telephone extension system utilizing power line carrier signalsMar 29, 82Oct 23, 84[H04M]
4,475,193 Power line carrier multi telephone extension system for full duplex conferencing between telephonesSep 30, 82Oct 02, 84[H04M]

Top Inventors for This Owner

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