Inventor · disambiguated record
Nabil Lawandy
Also filed as: LAWANDY NABIL · LAWANDY NABIL M
94 granted patents·39 pending applications·3,119 citations·filing 1988–2024
99Inventor score
Files withSPECTRA SYSTEMS CORP50SPECTRA SCIENCE CORP17LAWANDY NABIL M12UNIV BROWN RES FOUND12SOLARIS NANOSCIENCES INC9
Top patents by PatentIndex Score
133 records- 0198US5448582AOptical sources having a strongly scattering gain medium providing laser-like actionUNIV BROWN RES FOUND·Filed 1994·Granted Sep 5, 1995·139 cites·50 claims
- 0297US7529385B2Marking articles using a covert digitally watermarked imageSPECTRA SYSTEMS CORP·Filed 2007·Granted May 5, 2009·28 cites·9 claims
- 0397US6780564B2Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistantFLEXPLAY TECHNOLOGIES INC·Filed 2002·Granted Aug 24, 2004·104 cites·8 claims
- 0497US6338933B1Methods and apparatus for rendering an optically encoded medium unreadableSPECTRADISC CORP·Filed 1999·Granted Jan 15, 2002·181 cites·32 claims
- 0597US5625456AOptical sources having a strongly scattering gain medium providing laser-like actionUNIV BROWN RES FOUND·Filed 1995·Granted Apr 29, 1997·141 cites·3 claims
- 0696US6709802B2Methods and apparatus for rendering an optically encoded medium unreadableFLEXPLAY TECHNOLOGIES INC·Filed 2001·Granted Mar 23, 2004·64 cites·11 claims
- 0795US6948068B2Method and apparatus for reading digital watermarks with a hand-held reader deviceSPECTRA SYSTEMS CORP·Filed 2001·Granted Sep 20, 2005·92 cites·27 claims
- 0895US5604635AMicrolenses and other optical elements fabricated by laser heating of semiconductor doped and other absorbing glassesUNIV BROWN RES FOUND·Filed 1995·Granted Feb 18, 1997·67 cites·19 claims
- 0994US11007288B1Heat treatment of banknotes in an oxygen-free environmentSPECTRA SYSTEMS CORP·Filed 2021·Granted May 18, 2021·2 cites·10 claims
- 1094US8840029B2Multi wavelength excitation/emission authentication and detection schemeLAWANDY NABIL·Filed 2012·Granted Sep 23, 2014·21 cites·19 claims
- 1194US7184569B2Marking articles using a covert digitally watermarked imageSPECTRA SYSTEMS CORP·Filed 2002·Granted Feb 27, 2007·37 cites·24 claims
- 1294US7119161B2Anisotropic nanoparticles and anisotropic nanostructures and pixels, displays and inks using themSOLARIS NANOSCIENCES INC·Filed 2005·Granted Oct 10, 2006·44 cites·24 claims
- 1394US5882779ASemiconductor nanocrystal display materials and display apparatus employing sameSPECTRA SCIENCE CORP·Filed 1997·Granted Mar 16, 1999·256 cites·15 claims
- 1493US8530863B2Fluorescence notch coding and authenticationLAWANDY NABIL M·Filed 2008·Granted Sep 10, 2013·13 cites·27 claims
- 1593US6874639B2Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsSPECTRA SYSTEMS CORP·Filed 2002·Granted Apr 5, 2005·98 cites·36 claims
- 1693US6795464B2Temperature control of laser action in scattering mediaSPECTRA SYSTEMS CORP·Filed 2002·Granted Sep 21, 2004·45 cites·28 claims
- 1793US6441380B1Coding and authentication by phase measurement modulation response and spectral emissionSPECTRA SYSTEMS CORP·Filed 2000·Granted Aug 27, 2002·60 cites·23 claims
- 1893US5737126AMicrolenses and other optical elements fabricated by laser heating of semiconductor doped and other absorbing glassesUNIV BROWN RES FOUND·Filed 1997·Granted Apr 7, 1998·55 cites·7 claims
- 1993US4803688AOrdered colloidal suspension optical devicesLAWANDY NABIL M·Filed 1988·Granted Feb 7, 1989·63 cites·48 claims
- 2092US6633370B2Quantum dots, semiconductor nanocrystals and semiconductor particles used as fluorescent coding elementsSPECTRA SCIENCE CORP·Filed 2001·Granted Oct 14, 2003·52 cites·18 claims
- 2192US6531262B1Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistantSPECTRADISC CORP·Filed 2000·Granted Mar 11, 2003·35 cites·47 claims
- 2291US10140494B1Photoluminescent authentication devices, systems, and methodsSPECTRA SYSTEMS CORP·Filed 2018·Granted Nov 27, 2018·9 cites·30 claims
- 2391US6578712B2Methods 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
- 2490US9075020B2Gas activated changes to light absorption and emission characteristics for security articlesLAWANDY NABIL M·Filed 2011·Granted Jul 7, 2015·7 cites·21 claims
- 2590US6259506B1Field 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
- 2690US6047964AScratch card, and method and apparatus for validation of the sameSPECTRA SCIENCE CORP·Filed 1998·Granted Apr 11, 2000·57 cites·7 claims
- 2789US11501593B2Machine-readable polymer security threadsSPECTRA SYSTEMS CORP·Filed 2020·Granted Nov 15, 2022·2 cites·20 claims
- 2888US7220535B2Marking and authenticating articlesSPECTRA SYSTEMS CORP·Filed 2002·Granted May 22, 2007·24 cites·30 claims
- 2987US9676009B2Supercritical fluid cleaning of banknotes and secure documentsSPECTRA SYSTEMS CORP·Filed 2015·Granted Jun 13, 2017·3 cites·20 claims
- 3087US6489892B2Use of evaporatively activated color change for verifying the integrity of an object, such as a data storage medium or a gaming tokenSPECTRA SYSTEMS CORP·Filed 2001·Granted Dec 3, 2002·46 cites·44 claims
- 3186US6908505B2Thermochromic compositions of color formers and lewis acidsSPECTRA SYSTEMS CORP·Filed 2003·Granted Jun 21, 2005·15 cites·38 claims
- 3286US5919607APhoto-encoded selective etching for glass based microtechnology applicationsUNIV BROWN RES FOUND·Filed 1996·Granted Jul 6, 1999·73 cites·50 claims
- 3386US5903340AOptically-based methods and apparatus for performing document authenticationUNIV BROWN RES FOUND·Filed 1997·Granted May 11, 1999·112 cites·41 claims
- 3485US9610619B2Supercritical fluid cleaning of banknotes and secure documentsSPECTRA SYSTEMS CORP·Filed 2015·Granted Apr 4, 2017·3 cites·23 claims
- 3585US6100973AMethods 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
- 3684US8931701B2Methods and systems for authenticating and tracking objectsLAWANDY NABIL M·Filed 2011·Granted Jan 13, 2015·7 cites·19 claims
- 3784US7963450B2Near infrared ink security featureSPECTRA SYSTEMS CORP·Filed 2008·Granted Jun 21, 2011·18 cites·16 claims
- 3884US6832783B2Optically-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
- 3984US6552290B1Optically-based methods and apparatus for performing sorting coding and authentication using a gain medium that provides a narrowband emissionSPECTRA SYSTEMS CORP·Filed 1999·Granted Apr 22, 2003·77 cites·23 claims
- 4083US9189604B2Gas activated changes to light absorption and emission characteristics for security articlesLAWANDY NABIL·Filed 2014·Granted Nov 17, 2015·3 cites·14 claims
- 4183US7355704B2Chemical and biological sensing using metallic particles in amplifying and absorbing mediaSOLARIS NANOSCIENCES INC·Filed 2006·Granted Apr 8, 2008·7 cites·4 claims
- 4283US5943354AOptical sources having a strongly scattering gain medium providing laser-like actionUNIV BROWN RES FOUND·Filed 1997·Granted Aug 24, 1999·42 cites·17 claims
- 4383US5233621ASecond harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glassesINTELLECTUAL PROPERTY DEV ASS·Filed 1992·Granted Aug 3, 1993·39 cites·12 claims
- 4482US5825790AOptical sources having a strongly scattering gain medium providing laser-like actionUNIV BROWN RES FOUND·Filed 1996·Granted Oct 20, 1998·38 cites·13 claims
- 4582US5253258AOptically encoded phase matched second harmonic generation device and self frequency doubling laser material using semiconductor microcrystallite doped glassesINTELLECTUAL PROPERTY DEV ASS·Filed 1991·Granted Oct 12, 1993·42 cites·15 claims
- 4681US8961702B2Supercritical fluid cleaning of banknotes and secure documentsSPECTRA SYSTEMS CORP·Filed 2013·Granted Feb 24, 2015·4 cites·38 claims
- 4781US6488155B2Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objectsSPECTRA SYSTEMS CORP·Filed 2000·Granted Dec 3, 2002·35 cites·16 claims
- 4880US7760421B2Method and apparatus for enhancing plasmon polariton and phonon polariton resonanceSOLARIS NANOSCIENCES INC·Filed 2007·Granted Jul 20, 2010·6 cites·2 claims
- 4980US5157674ASecond harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glassesINTELLECTUAL PROPERTY DEV ASS·Filed 1991·Granted Oct 20, 1992·41 cites·30 claims
- 5079US6296189B1Methods 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
Showing the top 50 of 133 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →