NORTEL NETWORKS UK LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H01S DEVICES USING STIMULATED EMISSION2567
 
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 19186
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 10352
 
 
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 5128
 
 
 
H04B TRANSMISSION 3207
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
 
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
 
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
 
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
 
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS159

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7218659 High power semiconductor laser diodeJul 14, 04May 15, 07[H01S]
7173953 Anti-reflection coatings for semiconductor lasersDec 12, 03Feb 06, 07[H01S]
7099361 Laser source with high relative feedback and method for making such a laser sourceFeb 10, 04Aug 29, 06[H01S]
7085299 High power semiconductor laser with a large optical superlattice waveguideMar 15, 04Aug 01, 06[H01S]
7079312 Optical amplifiersFeb 25, 04Jul 18, 06[H04B]
7060516 Method for integrating optical devices in a single epitaxial growth stepSep 30, 03Jun 13, 06[H01L]
7043910 Thermal actuatorApr 07, 04May 16, 06[F01B]
7035305 Monolithically integrated high power laser optical deviceMay 10, 02Apr 25, 06[H01S]
6993054 Enhanced link operation of directly modulated lasers using gain-coupled gratingsDec 26, 01Jan 31, 06[H01S]
6973232 Waveguide mode stripper for integrated optical componentsFeb 12, 02Dec 06, 05[G02B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0141,578 Laser diode structure with blocking layerAbandonedJun 18, 04Jun 30, 05[H01S]
2005/0100,066 High temperature laser diodeAbandonedNov 05, 04May 12, 05[H01S]
6757097 Wavelength dependent isolatorExpiredAug 09, 02Jun 29, 04[G02B, H01S, G02F]
6714574 Monolithically integrated optically-pumped edge-emitting semiconductor laserExpiredNov 16, 01Mar 30, 04[H01S]
2004/0052,448 Analogue-to-digital conversion arrangementAbandonedFeb 21, 03Mar 18, 04[G02B]
2004/0013,143 Confinement layer of buried heterostructure semiconductor laserAbandonedDec 14, 01Jan 22, 04[H01S]
2003/0235,225 Guided self-aligned laser structure with integral current blocking layerAbandonedOct 02, 02Dec 25, 03[H01S]
6661567 Optical amplifier, optical amplifier hybrid assembly and method of manufactureExpiredDec 06, 00Dec 09, 03[H01S]
2003/0223,705 Method for terminating an optical waveguide into an optical componentAbandonedJun 03, 02Dec 04, 03[G02B]
6653213 Structure and method for doping of III-V compoundsExpiredDec 21, 00Nov 25, 03[H01L]
6650673 Generation of short optical pulses using strongly complex coupled DFB lasersExpiredDec 15, 98Nov 18, 03[H01S]
6635405 Print quality test structure for lithographic device manufacturingExpiredSep 22, 00Oct 21, 03[G09B, G03C, G06K]
6629784 Waveguides to photodetector assemblyExpiredJun 30, 98Oct 07, 03[G02B]
2003/0185,259 Frequency identification with frequency lockerAbandonedMar 29, 02Oct 02, 03[H01S]
2003/0185,511 Optical grating deviceAbandonedMar 29, 02Oct 02, 03[G02B]
6628853 Optical amplifiersExpiredDec 18, 01Sep 30, 03[G02B]
2003/0118,267 Isolation of microwave transmission linesAbandonedDec 21, 01Jun 26, 03[G02B]
2003/0118,308 Thermal compensation and alignment for optical devicesAbandonedDec 21, 01Jun 26, 03[G02B]
2003/0112,840 High power laser carrierAbandonedDec 19, 01Jun 19, 03[H01S]
2003/0106,988 Optical beam sampling monitorAbandonedDec 06, 01Jun 12, 03[H01L]

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