NORTHERN TELECOM LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04M TELEPHONIC COMMUNICATION 5161
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 3276
 
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 2200
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2435
 
 
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 192
 
 
 
B03B SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS 18
 
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 188
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1116
 
 
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 155
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1158

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8687773 Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewallsJan 08, 07Apr 01, 14[H04M]
8139732 Method and system for providing enhanced caller identificationApr 25, 07Mar 20, 12[H04M]
6868144 Method and system for interfacing systems unified messaging with legacy systems located behind corporate firewallsOct 03, 02Mar 15, 05[H04M, H04L, G10L]
6782079 Method and system for filter based message processing in a unified messaging systemJun 26, 02Aug 24, 04[H04M]
6643415 Method and apparatus for rotating image dataJan 26, 99Nov 04, 03[G06K]
6487167 Exclusion list of senders to an autonomous systemMar 10, 99Nov 26, 02[H04L]
6366985 High availability asynchronous computer systemSep 22, 00Apr 02, 02[G06F]
D454548 Bulging element on printed circuit boardNov 24, 00Mar 19, 02[1303]
6344851 Method and system for website overviewNov 30, 98Feb 05, 02[G06T]
6323978 Robust variable-bit-rate optical channel overheadApr 06, 98Nov 27, 01[H04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6873612 Methods and devices for asynchronous operation of a CDMA mobile communication systemExpiredOct 30, 98Mar 29, 05[G06F, H04B]
2005/0031,093 Method and system for filter based message processing in a unified messaging systemABANAug 20, 04Feb 10, 05[H04M]
6665399 High-efficiency line driverExpiredMar 25, 99Dec 16, 03[H04M]
6555778 Plasma enhanced sheet bonding method and deviceExpiredNov 19, 01Apr 29, 03[B23K]
2003/0063,582 Wireless communication system in which a base station controller routes packet data between roaming mobile units and a coupled packet data networkABANNov 11, 02Apr 03, 03[H04M, H04Q]
6424755 Slotted monolithic optical waveguidesExpiredJul 02, 99Jul 23, 02[G02B, G02F]
6330428 Voice quality performance evaluator and method of operation in conjunction with a communication networkExpiredDec 23, 98Dec 11, 01[H04B]
6285881 Method and system for quickly finding a control channel in a private cellular systemExpiredSep 13, 96Sep 04, 01[H04L]
6202907 Backpack frame and cotExpiredNov 24, 97Mar 20, 01[A45F]
6178656 Method and device for mechanically adjusting graduation-scale carrier membersExpiredJan 20, 99Jan 30, 01[A45B]
6075852 Telecommunications system and method for processing call-independent signalling transactionsExpiredJul 09, 97Jun 13, 00[H04M]
6069718 Distortion penalty measurement procedure in optical systems using noise loadingExpiredSep 19, 97May 30, 00[H04B, G01N]
6067456 System and method for relocating a user in a communications networkExpiredJul 15, 97May 23, 00[H04M, H04Q]
6051417 Prostate cancer drug screening using hKLK2 enhancerExpiredAug 04, 97Apr 18, 00[C12N, C12Q, G01N]
6026286 RF amplifier, RF mixer and RF receiverExpiredAug 01, 96Feb 15, 00[H04B]
6011783 Method and apparatus for monitoring echo cancellation performance within a telephone communications networkExpiredJun 11, 97Jan 04, 00[H04M, H04B]
5986519 Coaxial cable transition arrangementExpiredApr 27, 98Nov 16, 99[H01P]
5977759 Current mirror circuits for variable supply voltagesExpiredFeb 25, 99Nov 02, 99[G05F]
5970886 Cushioned pallet utilizing interconnecting reusable componentsExpiredDec 29, 97Oct 26, 99[B65D]
5930161 Nonvolatile content addressable memoryExpiredJul 06, 98Jul 27, 99[G11C]

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