Assignee
SPECTRA SCIENCE CORP
US·18 granted patents·870 citations·filing 1996–2002
Top patents by PatentIndex Score
18 records- 0194US5882779ASemiconductor nanocrystal display materials and display apparatus employing sameSPECTRA SCIENCE CORP·Filed 1997·Granted Mar 16, 1999·256 cites·15 claims
- 0292US6633370B2Quantum dots, semiconductor nanocrystals and semiconductor particles used as fluorescent coding elementsSPECTRA SCIENCE CORP·Filed 2001·Granted Oct 14, 2003·52 cites·18 claims
- 0391US6578712B2Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsSPECTRA SCIENCE CORP·Filed 2002·Granted Jun 17, 2003·56 cites·19 claims
- 0490US6259506B1Field activated security articles including polymer dispersed liquid crystals, and including micro-encapsulated field affected materialsSPECTRA SCIENCE CORP·Filed 1998·Granted Jul 10, 2001·110 cites·4 claims
- 0590US6047964AScratch card, and method and apparatus for validation of the sameSPECTRA SCIENCE CORP·Filed 1998·Granted Apr 11, 2000·57 cites·7 claims
- 0685US6100973AMethods and apparatus for performing microanalytical techniques using photolithographically fabricated substrates having narrow band optical emission capabilitySPECTRA SCIENCE CORP·Filed 1998·Granted Aug 8, 2000·49 cites·14 claims
- 0784US6832783B2Optically-based methods and apparatus for performing sorting, coding and authentication using a gain medium that provides a narrowband emissionSPECTRA SCIENCE CORP·Filed 2002·Granted Dec 21, 2004·28 cites·20 claims
- 0879US6296189B1Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsSPECTRA SCIENCE CORP·Filed 1999·Granted Oct 2, 2001·46 cites·37 claims
- 0976US6064476ASelf-targeting reader system for remote identificationSPECTRA SCIENCE CORP·Filed 1998·Granted May 16, 2000·37 cites·46 claims
- 1072US6030411APhotoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applicationsSPECTRA SCIENCE CORP·Filed 1998·Granted Feb 29, 2000·29 cites·10 claims
- 1172US5908608ASynthesis of metal chalcogenide quantumSPECTRA SCIENCE CORP·Filed 1997·Granted Jun 1, 1999·31 cites·5 claims
- 1271US6370216B1Thickness sensor suitable for detecting a presence of a plurality of items, such as currencySPECTRA SCIENCE CORP·Filed 2000·Granted Apr 9, 2002·12 cites·16 claims
- 1349US6088380AMethod and apparatus for intracavity pixelated lasing projectionSPECTRA SCIENCE CORP·Filed 1998·Granted Jul 11, 2000·14 cites·21 claims
- 1444US5845640AChemiluminescent sources for photodynamic therapy and photomedicineSPECTRA SCIENCE CORP·Filed 1997·Granted Dec 8, 1998·34 cites·26 claims
- 1543US5851225APhotoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applicationsSPECTRA SCIENCE CORP·Filed 1996·Granted Dec 22, 1998·30 cites·11 claims
- 1634US6254596B1Solid state source for generating intense light for photomedicineSPECTRA SCIENCE CORP·Filed 1998·Granted Jul 3, 2001·12 cites·8 claims
- 1734US6233481B1Diagnostic application of sono-chemical excitation of fluorescent photosensitizersSPECTRA SCIENCE CORP·Filed 1998·Granted May 15, 2001·15 cites·16 claims
- 1830US5793781ASolid state source for generating intense light for photodynamic therapy and photomedicineSPECTRA SCIENCE CORP·Filed 1997·Granted Aug 11, 1998·2 cites·20 claims
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