Gemfire Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 21184
 
  
 
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 8125
 
  
 
H01S DEVICES USING STIMULATED EMISSION686
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9494735 AWG supporting multiple frequency bands and channel plans through respective multiple inputsOct 12, 11Nov 15, 16[G02B, H04J]
8873910 Optical device with athermal slots for temperature dependence curvature reductionMar 18, 11Oct 28, 14[G02B]
8824056 Optical device with reduced polarization sensitivityMar 28, 12Sep 02, 14[G02B]
7711222 Tunable dispersion compensation apparatusMar 03, 06May 04, 10[G02B]
7689072 Optical device with reduced temperature dependenceMay 30, 08Mar 30, 10[G02B]
7492991 Arrayed waveguide grating with reduced channel passband asymmetryApr 19, 07Feb 17, 09[G02B]
7397986 Optical device with reduced temperature dependenceMar 04, 05Jul 08, 08[G02B]
7263247 Integrated optical isolator arrayFeb 11, 02Aug 28, 07[G02B]
7235150 Multi-channel laser pump source for optical amplifiersJul 23, 04Jun 26, 07[B32B]
6842545 Optoelectronic and photonic devices formed of materials which inhibit degradation and failureApr 05, 01Jan 11, 05[G02B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7653109 Multi-channel laser pump source for optical amplifiersExpiredJun 25, 07Jan 26, 10[H01S]
7471856 Short reach optical interconnectExpiredJul 08, 05Dec 30, 08[G02B]
7382953 Folded AWG architectureExpiredFeb 09, 07Jun 03, 08[G02B]
2008/0019,640 Dynamically tunable waveguide chip for optical transformsAbandonedMar 05, 07Jan 24, 08[G02B]
7215854 Low-loss optical waveguide crossovers using an out-of-plane waveguideExpiredAug 12, 05May 08, 07[G02B]
7062130 Low-loss optical waveguide crossovers using an out-of-plane waveguideExpiredFeb 18, 04Jun 13, 06[G02B]
6990264 1×N or N×1 optical switch having a plurality of movable light guiding microstructuresExpiredOct 19, 01Jan 24, 06[G02B]
6954579 Method and apparatus for changing the optical intensity of an optical signal using a movable light transmissive structureExpiredNov 29, 01Oct 11, 05[G02B]
6937335 Dynamic alignment of optical fibers to optical circuit devices such as planar lightwave circuitsExpiredMar 08, 02Aug 30, 05[G02B, G01B]
6836583 Structures that correct for thermal distortion in an optical device formed of thermally dissimilar materialsExpiredMar 30, 04Dec 28, 04[G02B]
6806114 Broadly tunable distributed bragg reflector structure processingExpiredNov 07, 01Oct 19, 04[H01L, H01S]
6807331 Structures that correct for thermal distortion in an optical device formed of thermally dissimilar materialsExpiredFeb 08, 02Oct 19, 04[G02B]
2004/0105,611 Multi-channel laser pump source for optical amplifiersAbandonedJul 09, 03Jun 03, 04[G02B]
6724968 Photodefinition of optical devicesExpiredDec 01, 00Apr 20, 04[G02B]
6694071 Method and apparatus for switching optical signals using rotatable optically transmissive microstructureExpiredSep 05, 01Feb 17, 04[G02B]
6690847 Optical switching element having movable optically transmissive microstructureExpiredApr 17, 01Feb 10, 04[G02B]
6650819 Methods for forming separately optimized waveguide structures in optical materialsExpiredOct 16, 01Nov 18, 03[G02B]
6647168 Low loss optical switching systemExpiredOct 19, 01Nov 11, 03[G02B]
6647170 Optical switching system that uses movable microstructures to switch optical signals in three dimensionsExpiredApr 17, 01Nov 11, 03[G02B]
6580842 Integrated optical circulator arrayExpiredFeb 11, 02Jun 17, 03[G02B]

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