TRONTECH LICENSING INCORPORATED

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04M TELEPHONIC COMMUNICATION 5158
 
  
 
H04Q SELECTING 3107
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5646979 Cordless telephone with voice announced calling party identificationDec 20, 95Jul 08, 97[H04Q]
5418839 Environmental adaptive mechanism for channel utilization in cordless telephonesMar 22, 93May 23, 95[H04M, H04Q]
5400393 Voice mail digital telephone answering deviceMay 06, 94Mar 21, 95[H04M]
5313516 Telephone answering device with automatic functionMay 07, 92May 17, 94[H04M]
5289529 Means for improving the dynamic range of an analog/digital converter in a digital telephone answering machineOct 04, 90Feb 22, 94[H04M]
5197093 Enviromental adaptive mechanism for channel utilization in cordless telephonesApr 12, 91Mar 23, 93[H04M, H04Q, H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6304644 Apparatus and method for cost effective caller identification and call-waiting for a multi-line telephoneExpiredMay 06, 98Oct 16, 01[H04M]
6160872 Apparatus and method for preventing disconnection of consumer premises equipmentExpiredJul 06, 98Dec 12, 00[H04M]
6009165 Full duplex speakerphone systemExpiredAug 22, 97Dec 28, 99[H04M]
5991632 Cordless telephone and method of synchronization for secure, high-speed, high-volume data transferExpiredApr 04, 97Nov 23, 99[H04Q]
5907596 Calling party identification device with message functionExpiredFeb 15, 96May 25, 99[H04M]
5825648 Backup system for a time of day clock in an electronic deviceExpiredMar 26, 96Oct 20, 98[G05B]
5826187 Integrated cordless telephone with telephone answering device and method of replaying messages through a handset thereofExpiredJan 02, 96Oct 20, 98[H04Q]
5781613 Telephone answering device and method for screening incoming telephone calls with blocked calling party identification informationExpiredJun 17, 96Jul 14, 98[H04M]
5768349 Voice mail telephone answering deviceExpiredMar 15, 96Jun 16, 98[H04M]
5768364 Software speakerphone system and method of operating a speakerphoneExpiredFeb 10, 97Jun 16, 98[H04M]
5761271 Telephone answering device with improved pager access featureExpiredJan 18, 96Jun 02, 98[H04M]
5692042 Speakerphone controlled by a comparator with hysteresisExpiredMay 31, 95Nov 25, 97[H04M]
5680075 Digital automatic gain controlExpiredMay 31, 95Oct 21, 97[H03G]
5669421 Method of controlling the yarn tension in a weaving machineExpiredOct 02, 95Sep 23, 97[D03D]
5406618 Voice activated, handsfree telephone answering deviceExpiredOct 05, 92Apr 11, 95[H04M]
5111500 Handset or speaker message retrieval systemExpiredJan 04, 90May 05, 92[H04M]
5101426 Telephone answering device with improved end signal detectionExpiredMay 14, 90Mar 31, 92[H04M]
5073932 Secured data transmission and error recovery mechanism in cordless telephonesExpiredAug 31, 90Dec 17, 91[H04M, G06F, H04K]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.