MITEL KNOWLEDGE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04M TELEPHONIC COMMUNICATION 3160
 
  
 
A47F SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS, OR THE LIKE; PAYING COUNTERS131
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7400736 Method for extending the frequency range of a beamformer without spatial aliasingDec 15, 03Jul 15, 08[H04R]
7212628 Echo cancellation/suppression and double-talk detection in communication pathsJan 26, 04May 01, 07[H04M]
7010117 Multi-frequency tone detectorMar 15, 01Mar 07, 06[H04M]
6695150 Support unit for stacked itemsDec 11, 02Feb 24, 04[A47F]
D483752 HandsetNov 01, 02Dec 16, 03[1403]
D406836 Modular telephone setJun 22, 98Mar 16, 99[1403]
D406837 Modular telephone setJun 22, 98Mar 16, 99[1403]
D406838 Modular telephone setJun 22, 98Mar 16, 99[1403]
D406839 Modular telephone setJun 22, 98Mar 16, 99[1403]
D401234 Modular telephone setJun 19, 96Nov 17, 98[1403]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7035389 Pro-active features for telephonyWithdrawnDec 05, 02Apr 25, 06[H04M]
6865271 Constant current line circuit with class featuresExpiredMar 30, 01Mar 08, 05[H04M]
2003/0156,577 Solution to enhanced emergency services (e.g. 911) for IP telephony systemsAbandonedFeb 19, 02Aug 21, 03[H04L]
2003/0048,880 Voice identification pre-screening and redirection systemAbandonedSep 06, 02Mar 13, 03[H04M]
2002/0041,679 Method and apparatus for minimizing far-end speech effects in hands-free telephony systems using acoustic beamformingAbandonedOct 03, 01Apr 11, 02[H04M]
2001/0036,257 Voice invoked call blockingAbandonedMar 06, 01Nov 01, 01[H04M]
2001/0019,603 Timed schedule reminder via telephoneAbandonedMar 05, 01Sep 06, 01[H04M]
2001/0013,066 Route optimization over diverse mediaAbandonedFeb 02, 01Aug 09, 01[G06F]
2001/0010,718 Telephone for a plurality of simultaneous conversationsAbandonedJan 19, 01Aug 02, 01[H04M]
5677830 Modular, stacking, expandable electronic enclosure systemExpiredMar 02, 95Oct 14, 97[H01R]
5311656 Keypad method of manufactureExpiredMar 12, 91May 17, 94[H01H]
5140590 Telephone or data switching system with variable protocol inter-office communicationExpiredMar 16, 90Aug 18, 92[H04J]
5046188 Data interface for telephone systemExpiredFeb 21, 89Sep 03, 91[H04M]
4792970 Expansion port for use in a communication systemExpiredMar 17, 86Dec 20, 88[H04M, H04Q]
4743897 LED driver circuitExpiredOct 09, 85May 10, 88[G09G]
4726054 System for interconnecting a pair of communication systemsExpiredMar 17, 86Feb 16, 88[H04Q]
4685102 Switching system loopback test circuitExpiredMay 11, 84Aug 04, 87[H04J]
4685122 Interface circuit for remote control of a PABXExpiredJan 14, 85Aug 04, 87[H04M]
4544808 Telephone indicatorExpiredOct 14, 83Oct 01, 85[H04M]
4538031 Home communications and control systemExpiredSep 10, 82Aug 27, 85[H04M]

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Top Inventors for This Owner

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