SPECTRA SCIENCE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G07D SORTING, TESTING, CHANGING, DELIVERING, OR OTHERWISE HANDLING COINS; TESTING OR CHANGING PAPER CURRENCY; TESTING SECURITIES, BONDS, OR SIMILAR VALUABLE PAPERS 235
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 1239
 
  
 
B07C POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING 126
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
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 1132
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1197
 
  
 
G06M COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR 113
 
  
 
H01S DEVICES USING STIMULATED EMISSION191

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6832783 Optically-based methods and apparatus for performing sorting, coding and authentication using a gain medium that provides a narrowband emissionNov 25, 02Dec 21, 04[G07D]
6552290 Optically-based methods and apparatus for performing sorting coding and authentication using a gain medium that provides a narrowband emissionFeb 08, 99Apr 22, 03[B07C, G07D]
6441380 Coding and authentication by phase measurement modulation response and spectral emissionOct 11, 00Aug 27, 02[G06K]
6370216 Thickness sensor suitable for detecting a presence of a plurality of items, such as currencyMar 24, 00Apr 09, 02[G06M]
6259506 Field activated security articles including polymer dispersed liquid crystals, and including micro-encapsulated field affected materialsJun 23, 98Jul 10, 01[G02F]
6064476 Self-targeting reader system for remote identificationNov 23, 98May 16, 00[G01J]
5845640 Chemiluminescent sources for photodynamic therapy and photomedicineSep 15, 97Dec 08, 98[A61B]
5793781 Solid state source for generating intense light for photodynamic therapy and photomedicineJan 24, 97Aug 11, 98[H01S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6578712 Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsExpiredJan 25, 02Jun 17, 03[B07C, G06K]
6296189 Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsExpiredAug 23, 99Oct 02, 01[G06K]
6254596 Solid state source for generating intense light for photomedicineExpiredJun 24, 98Jul 03, 01[A61B]
6233481 Diagnostic application of sono-chemical excitation of fluorescent photosensitizersExpiredOct 05, 98May 15, 01[A61B]
6100973 Methods and apparatus for performing microanalytical techniques using photolithographically fabricated substrates having narrow band optical emission capabilityExpiredApr 13, 98Aug 08, 00[G01N]
6047964 Scratch card, and method and apparatus for validation of the sameExpiredMar 31, 98Apr 11, 00[A63F]
6030411 Photoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applicationsExpiredApr 08, 98Feb 29, 00[A61B]
5851225 Photoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applicationsExpiredNov 13, 96Dec 22, 98[A61N]

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