Nortel Networks Ltd
Nortel NetActive Patents
0
Total Holdings
143
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP1318648A2 | Fast path recovery method in label switching networks, and … | Expired / Lapsed | 2002-12-02 | — | 26 | Details |
| EP1152631A2 | Supervisory control plane over wavelenght routed networks | Expired / Lapsed | 2001-04-25 | — | 5 | Details |
| EP1146682A2 | Two stage, hybrid logical ring protection with rapid path r… | Expired / Lapsed | 2001-03-21 | — | 27 | Details |
| EP1030491A3 | System and method for route optimization in a wireless inte… | Expired / Lapsed | 2000-01-24 | — | 0 | Details |
| EP0994635A1 | Method and apparatus for data transmission in synchronous o… | Expired / Lapsed | 1999-10-13 | — | 18 | Details |
| EP1016998A2 | Workflow manager | Expired / Lapsed | 1999-10-01 | — | 23 | Details |
| EP0982901A1 | Route selection method and apparatus in a packet network | Expired / Lapsed | 1999-08-17 | — | 27 | Details |
| EP0977394A2 | Bidirectional ring networks implemented on a single fiber | Expired / Lapsed | 1999-06-23 | — | 22 | Details |
| EP0926614A2 | Method and system for activity-responsive telemarketing | Expired / Lapsed | 1998-12-18 | — | 26 | Details |
| EP0845895A2 | Semi-interruptible messages for telephone systems making vo… | Expired / Lapsed | 1997-11-27 | — | 13 | Details |
| EP0818940A2 | Self-healing line switched ring for ATM traffic | Expired / Lapsed | 1997-07-09 | — | 22 | Details |
| EP0876045A1 | Improved billing scheme for a telecommunications network | Expired / Lapsed | 1997-05-28 | — | 14 | Details |
| EP0797374A2 | Synchronous transmission system adapted to carry both synch… | Expired / Lapsed | 1997-03-21 | — | 10 | Details |
| EP0916193A1 | Reducing crosstalk between communications systems | Expired / Lapsed | 1997-01-15 | — | 0 | Details |
| EP0639035A1 | Base station antenna arrangement | Expired / Lapsed | 1994-07-21 | — | 20 | Details |
| EP0496607A1 | Surveillance system | Expired / Lapsed | 1992-01-23 | — | 6 | Details |
| EP0398183A2 | Carrier independent network services | Expired / Lapsed | 1990-05-11 | — | 8 | Details |
| EP0282198A2 | Communications system and components and methods for use th… | Expired / Lapsed | 1988-02-23 | — | 17 | Details |
| EP0268375A2 | Private cellular system | Expired / Lapsed | 1987-10-15 | — | 19 | Details |
| EP0103963A2 | Apparatus for stranding at least two wires together | Expired / Lapsed | 1983-08-01 | — | 10 | Details |
| EP0104725A2 | Forming cable core units | Expired / Lapsed | 1983-08-01 | — | 11 | Details |
| EP0100169A2 | Time compression multiplex digital transmission system | Expired / Lapsed | 1983-07-06 | — | 6 | Details |
| GB1447469A | Optical fibre connectors | Expired / Lapsed | 1975-03-14 | — | 0 | Details |
| DE2456825A1 | TELEPHONE DATA DEVICE | Expired / Lapsed | 1974-12-02 | — | 0 | Details |
| GB1444828A | GB1444828A - - Google Patents | Expired / Lapsed | 1974-03-12 | — | 0 | Details |
| US6848006B1 | Ring-mesh networks | Expired / Lapsed | 2000-05-30 | 2005-01-25 | 28 | Details |
| US6744769B1 | Path provisioning on ring-based networks | Expired / Lapsed | 2000-10-19 | 2004-06-01 | 46 | Details |
| US6628609B2 | Method and apparatus for simple IP-layer bandwidth allocati… | Expired / Lapsed | 1998-04-30 | 2003-09-30 | 60 | Details |
| US6597826B1 | Optical cross-connect switching system with bridging, test … | Expired / Lapsed | 2000-11-01 | 2003-07-22 | 18 | Details |
| US6574223B1 | Adaption layer switching | Expired / Lapsed | 1998-02-19 | 2003-06-03 | 12 | Details |
| US6535507B1 | Method of address resolution for the transfer of synchronou… | Expired / Lapsed | 1998-07-06 | 2003-03-18 | 41 | Details |
| US6529298B1 | Method of deactivating working fiber resources in optical r… | Expired / Lapsed | 1999-12-23 | 2003-03-04 | 39 | Details |
| US6449251B1 | Packet mapper for dynamic data packet prioritization | Expired / Lapsed | 1999-04-02 | 2002-09-10 | 55 | Details |
| US6438106B1 | Inter-class schedulers utilizing statistical priority guara… | Expired / Lapsed | 1998-12-22 | 2002-08-20 | 5 | Details |
| US6330454B1 | System and method for locating mobile units operating withi… | Expired / Lapsed | 1999-03-29 | 2001-12-11 | 17 | Details |
| US6201965B1 | Telecommunication subscriber connection using a domain name… | Expired / Lapsed | 1998-11-10 | 2001-03-13 | 29 | Details |
| US6173384B1 | Method of searching for a data element in a data structure | Expired / Lapsed | 1998-02-11 | 2001-01-09 | 30 | Details |
| US5263084A | Spontaneous caller identification with call-waiting | Expired / Lapsed | 1991-07-22 | 1993-11-16 | 11 | Details |
| US5148548A | Method of monitoring cellular radio channels to avoid adjac… | Expired / Lapsed | 1989-12-19 | 1992-09-15 | 6 | Details |
| USD315896S | Keypad | Expired / Lapsed | 1989-04-20 | 1991-04-02 | 1 | Details |
| USD309298S | Telephone data modem | Expired / Lapsed | 1988-11-10 | 1990-07-17 | 1 | Details |
| USD307908S | Housing for telephonic equipment | Expired / Lapsed | 1988-03-08 | 1990-05-15 | 1 | Details |
| USD306027S | Add-on access module for a telephone set | Expired / Lapsed | 1988-09-22 | 1990-02-13 | 1 | Details |
| US4847665A | Monolithic integration of optoelectronic and electronic dev… | Expired / Lapsed | 1988-03-31 | 1989-07-11 | 23 | Details |
| US4804337A | Electrical connectors | Expired / Lapsed | 1987-10-23 | 1989-02-14 | 22 | Details |
| USD297138S | Base for a telephone set | Expired / Lapsed | 1987-03-20 | 1988-08-09 | 1 | Details |
| US4680583A | Terminal address assignment in a broadcast transmission sys… | Expired / Lapsed | 1985-02-01 | 1987-07-14 | 15 | Details |
| USD290354S | Telephone set add-on accessory module | Expired / Lapsed | 1984-06-11 | 1987-06-16 | 1 | Details |
| US4670899A | Load balancing for cellular radiotelephone system | Expired / Lapsed | 1985-05-31 | 1987-06-02 | 32 | Details |
| USD289520S | Telephone base and handpiece set | Expired / Lapsed | 1985-03-18 | 1987-04-28 | 1 | Details |
| USD289045S | Keypad for a handset telephone | Expired / Lapsed | 1985-02-01 | 1987-03-31 | 1 | Details |
| US4651154A | Digital NAVSTAR receiver | Expired / Lapsed | 1985-02-27 | 1987-03-17 | 6 | Details |
| USD287849S | Communications headset | Expired / Lapsed | 1984-09-21 | 1987-01-20 | 1 | Details |
| US4612671A | Laser transmitter | Expired / Lapsed | 1984-10-29 | 1986-09-16 | 13 | Details |
| USD285680S | Switching exchange for telephone and/or data communication | Expired / Lapsed | 1984-02-14 | 1986-09-16 | 1 | Details |
| USD285071S | Telephone set base | Expired / Lapsed | 1984-02-23 | 1986-08-12 | 1 | Details |
| USD284761S | Handset telephone | Expired / Lapsed | 1984-06-11 | 1986-07-22 | 1 | Details |
| USD282361S | Telephone set base | Expired / Lapsed | 1983-02-15 | 1986-01-28 | 1 | Details |
| USD280619S | Housing for a telephone handset | Expired / Lapsed | 1983-02-15 | 1985-09-17 | 1 | Details |
| USD280618S | Housing for a wall-mount telephone set base | Expired / Lapsed | 1983-02-15 | 1985-09-17 | 1 | Details |
| USD280199S | Display terminal | Expired / Lapsed | 1983-02-08 | 1985-08-20 | 1 | Details |
| US4521643A | Apparatus for transmitting information via telephone lines | Expired / Lapsed | 1983-02-18 | 1985-06-04 | 47 | Details |
| USD279004S | Housing for a telecommunications handset | Expired / Lapsed | 1982-11-18 | 1985-05-28 | 1 | Details |
| US4515419A | Electronic instrument with stand doubling as console cover | Expired / Lapsed | 1982-06-22 | 1985-05-07 | 4 | Details |
| US4511950A | Backpanel assemblies | Expired / Lapsed | 1983-06-27 | 1985-04-16 | 11 | Details |
| USD276430S | Base for a telecommunications set | Expired / Lapsed | 1982-03-12 | 1984-11-20 | 1 | Details |
| USD275101S | Telephone bell chime enclosure | Expired / Lapsed | 1982-01-25 | 1984-08-14 | 1 | Details |
| US4453689A | Adjustable mounting | Expired / Lapsed | 1981-07-10 | 1984-06-12 | 13 | Details |
| US4453043A | Telephone for a physically handicapped person | Expired / Lapsed | 1982-02-04 | 1984-06-05 | 2 | Details |
| US4433386A | Surface relief measuring equipment | Expired / Lapsed | 1980-12-08 | 1984-02-21 | 10 | Details |
| US4405410A | Masking of elongate three dimensional objects for the expos… | Expired / Lapsed | 1982-01-15 | 1983-09-20 | 8 | Details |
| US4399541A | Light emitting device package having combined heater/cooler | Expired / Lapsed | 1981-02-17 | 1983-08-16 | 14 | Details |
| US4388643A | Method of controlling scrambling and unscrambling in a pay … | Expired / Lapsed | 1981-04-06 | 1983-06-14 | 13 | Details |
| US4386388A | Printed circuit board assembly | Expired / Lapsed | 1981-09-04 | 1983-05-31 | 3 | Details |
| USD265991S | Transmission switching equipment cabinet | Expired / Lapsed | 1979-10-31 | 1982-08-31 | 1 | Details |
| USD265734S | Telephone set base | Expired / Lapsed | 1980-12-08 | 1982-08-10 | 1 | Details |
| USD265311S | Telephone display set base | Expired / Lapsed | 1979-10-22 | 1982-07-06 | 1 | Details |
| USD265089S | Telephone set base | Expired / Lapsed | 1979-10-31 | 1982-06-22 | 1 | Details |
| USD264845S | Housing for telecommunications apparatus | Expired / Lapsed | 1980-04-14 | 1982-06-08 | 1 | Details |
| USD264715S | Telephone base | Expired / Lapsed | 1979-08-13 | 1982-06-01 | 1 | Details |
| USD263588S | Telephone base set | Expired / Lapsed | 1979-07-16 | 1982-03-30 | 1 | Details |
| USD263589S | Telephone base set | Expired / Lapsed | 1979-07-16 | 1982-03-30 | 1 | Details |
| US4319086A | Voice switch for hands free communication apparatus | Expired / Lapsed | 1980-06-23 | 1982-03-09 | 8 | Details |
| USD263208S | Electrical test set housing member | Expired / Lapsed | 1979-11-05 | 1982-03-02 | 1 | Details |
| US4232212A | Thermal printers | Expired / Lapsed | 1978-10-03 | 1980-11-04 | 14 | Details |
| USD255681S | Telephone handset | Expired / Lapsed | 1978-05-15 | 1980-07-01 | 1 | Details |
| USD255680S | Telephone base | Expired / Lapsed | 1978-05-12 | 1980-07-01 | 1 | Details |
| US4201250A | Powder distributor for filling a cable | Expired / Lapsed | 1978-02-13 | 1980-05-06 | 8 | Details |
| US4182546A | Multiple connector for optical fibres | Expired / Lapsed | 1978-02-21 | 1980-01-08 | 7 | Details |
| US4182935A | Optical fiber data transmission system | Expired / Lapsed | 1977-11-14 | 1980-01-08 | 19 | Details |
| USD253703S | Housing for telephone set | Expired / Lapsed | 1977-09-19 | 1979-12-18 | 1 | Details |
| USD252876S | Base for telephone set | Expired / Lapsed | 1977-09-19 | 1979-09-11 | 1 | Details |
| US4152042A | Box terminal for card edge receptacles in telecommunication… | Expired / Lapsed | 1977-12-05 | 1979-05-01 | 3 | Details |
| US4123625A | Digital regenerator having improving noise immunity | Expired / Lapsed | 1977-11-03 | 1978-10-31 | 19 | Details |
| US4099046A | Thermal printing device | Expired / Lapsed | 1977-04-11 | 1978-07-04 | 14 | Details |
| US4070557A | Apparatus for providing closed loop conditions in vacant mo… | Expired / Lapsed | 1976-07-26 | 1978-01-24 | 9 | Details |
| US4040120A | Electrostatic protection for a telecommunications terminal … | Expired / Lapsed | 1976-06-29 | 1977-08-02 | 11 | Details |
| US4029916A | Multi-contact push-button switch and plural embodiment for … | Expired / Lapsed | 1975-04-18 | 1977-06-14 | 7 | Details |
| US3968564A | Alignment of optical fibers to light emitting diodes | Expired / Lapsed | 1975-04-30 | 1976-07-13 | 5 | Details |
| US3946467A | Clamp for an optical fibre | Expired / Lapsed | 1974-12-09 | 1976-03-30 | 8 | Details |
| US3923362A | Wire connecting blocks | Expired / Lapsed | 1974-12-19 | 1975-12-02 | 7 | Details |
| US3916103A | Interconnector for telephone units | Expired / Lapsed | 1973-04-09 | 1975-10-28 | 3 | Details |
| US3910022A | Apparatus for stranding wires | Expired / Lapsed | 1974-07-18 | 1975-10-07 | 11 | Details |
| US3897282A | Method of forming silicon gate device structures with two o… | Expired / Lapsed | 1972-10-17 | 1975-07-29 | 27 | Details |
| US3889059A | Loudspeaking communication terminal apparatus and method of… | Expired / Lapsed | 1973-03-26 | 1975-06-10 | 14 | Details |
| US3885859A | Optical fibre connectors | Expired / Lapsed | 1974-06-24 | 1975-05-27 | 11 | Details |
| US3790720A | Digital decoder for multiple frequency telephone signalling | Expired / Lapsed | 1972-10-27 | 1974-02-05 | 10 | Details |
| US3787639A | Pushbutton electronic pulsing dial | Expired / Lapsed | 1972-11-16 | 1974-01-22 | 16 | Details |
| US3729586A | Digital guard-time circuit for use in a frame synchronizati… | Expired / Lapsed | 1971-09-23 | 1973-04-24 | 5 | Details |
| US3718971A | Wire cutter | Expired / Lapsed | 1971-02-01 | 1973-03-06 | 0 | Details |
| US3713046A | Waveform generator with accurate mark to space ratio | Expired / Lapsed | 1972-02-22 | 1973-01-23 | 8 | Details |
| US3673391A | Digital frequency multiplying system | Expired / Lapsed | 1970-12-16 | 1972-06-27 | 8 | Details |
| US3671366A | Ultrasonic welding of thermoplastics | Expired / Lapsed | 1970-06-19 | 1972-06-20 | 0 | Details |
| US3670110A | Telephone line transfer circuit using disjoint routing netw… | Expired / Lapsed | 1971-02-22 | 1972-06-13 | 22 | Details |
| US3668331A | Timing and control circuit for intercom telephone system | Expired / Lapsed | 1971-02-22 | 1972-06-06 | 14 | Details |
| US3668698A | Capacitive transducer | Expired / Lapsed | 1970-12-17 | 1972-06-06 | 11 | Details |
| US3617880A | Time domain reflectometer | Expired / Lapsed | 1970-05-15 | 1971-11-02 | 8 | Details |
| US3573507A | Integrated mos transistor flip-flop circuit | Expired / Lapsed | 1968-11-08 | 1971-04-06 | 7 | Details |
| US3562596A | Noncoded digit detection circuit for electrical combination… | Expired / Lapsed | 1968-07-16 | 1971-02-09 | 5 | Details |
| US3521008A | Telephone instrument | Expired / Lapsed | 1967-03-31 | 1970-07-21 | 0 | Details |
| US3464001A | Apparatus for sequentially testing the crosspoints of a fer… | Expired / Lapsed | 1967-06-27 | 1969-08-26 | 0 | Details |
| US3461273A | Solid state circuit for controlling the temperature of an e… | Expired / Lapsed | 1966-08-24 | 1969-08-12 | 0 | Details |
| US3458713A | Polycarbonate electrets | Expired / Lapsed | 1966-11-01 | 1969-07-29 | 2 | Details |
| US3447147A | Encoder | Expired / Lapsed | 1965-06-03 | 1969-05-27 | 0 | Details |
| US3436492A | Field effect electroacoustic transducer | Expired / Lapsed | 1966-01-17 | 1969-04-01 | 0 | Details |
| US3423822A | Method of making large scale integrated circuit | Expired / Lapsed | 1967-02-27 | 1969-01-28 | 0 | Details |
| US3381277A | System for selective readout of an information store | Expired / Lapsed | 1965-10-11 | 1968-04-30 | 0 | Details |
| US3380024A | Multi-digit electrical combination lock | Expired / Lapsed | 1964-04-16 | 1968-04-23 | 0 | Details |
| US3328601A | Distributed field effect devices | Expired / Lapsed | 1964-06-02 | 1967-06-27 | 2 | Details |
| US3313953A | Switching and memory circuit comprising series field effect… | Expired / Lapsed | 1964-01-27 | 1967-04-11 | 2 | Details |
| US3300585A | Self-polarized electrostatic microphone-semiconductor ampli… | Expired / Lapsed | 1963-10-01 | 1967-01-24 | 2 | Details |
| US3237110A | Television sync separator circuit with missing pulse detect… | Expired / Lapsed | 1963-09-10 | 1966-02-22 | 2 | Details |
| CA667423A | Semiconductor device and method of manufacture | Expired / Lapsed | — | 1963-07-23 | 0 | Details |
| US3093756A | Detector of pulses exceeding a predetermined length | Expired / Lapsed | 1961-11-24 | 1963-06-11 | 2 | Details |
| US3077545A | Gates including (1) diodes and complementary transistors in… | Expired / Lapsed | 1960-03-07 | 1963-02-12 | 4 | Details |
| US3060350A | Timing delay and reset circuit | Expired / Lapsed | 1960-03-07 | 1962-10-23 | 0 | Details |
| US2946949A | Device for testing continuity and capacitance of circuit el… | Expired / Lapsed | 1957-02-04 | 1960-07-26 | 0 | Details |
| US2866067A | Electric heating circuit for electric heating devices | Expired / Lapsed | 1957-02-11 | 1958-12-23 | 0 | Details |
| US2780906A | Apparatus for forming multi-element cable | Expired / Lapsed | 1954-04-02 | 1957-02-12 | 0 | Details |
| US2701818A | Fluid cooled electrical conductor with flexible stiffener | Expired / Lapsed | 1951-12-28 | 1955-02-08 | 0 | Details |
| US2623200A | Servo-control mechanism | Expired / Lapsed | 1949-05-13 | 1952-12-23 | 0 | Details |
| US2580803A | Phase measuring device | Expired / Lapsed | 1950-01-12 | 1952-01-01 | 0 | Details |
| US2504804A | Electrical protective apparatus | Expired / Lapsed | 1948-12-11 | 1950-04-18 | 0 | Details |