Inventor

LAWANDY NABIL M

US73 patents

⚠️ This page may combine multiple inventors who share the name “LAWANDY NABIL M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LAWANDY NABIL M

SPECTRA SCIENCE CORP

Semiconductor nanocrystal display materials and display apparatus employing same

Field activated security articles including polymer dispersed liquid crystals, and including micro-encapsulated field affected materials

Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objects

Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objects

Scratch card, and method and apparatus for validation of the same

Optically-based methods and apparatus for performing sorting, coding and authentication using a gain medium that provides a narrowband emission

Quantum dots, semiconductor nanocrystals and semiconductor particles used as fluorescent coding elements

Methods and apparatus for performing microanalytical techniques using photolithographically fabricated substrates having narrow band optical emission capability

Photoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applications

Photoemitting catheters and other structures suitable for use in photo-dynamic therapy and other applications

Chemiluminescent sources for photodynamic therapy and photomedicine

Synthesis of metal chalcogenide quantum

SPECTRA SYSTEMS CORP

Method and apparatus for reading digital watermarks with a hand-held reader device

Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objects

Optically-based methods and apparatus for performing sorting coding and authentication using a gain medium that provides a narrowband emission

Coding and authentication by phase measurement modulation response and spectral emission

Marking articles using a covert digitally watermarked image

Temperature control of laser action in scattering media

Methods and apparatus employing multi-spectral imaging for the remote identification and sorting of objects

Use of evaporatively activated color change for verifying the integrity of an object, such as a data storage medium or a gaming token

Marking articles using a covert digitally watermarked image

Marking and authenticating articles

Thermochromic compositions of color formers and lewis acids

UNIV BROWN RES FOUND

Optical sources having a strongly scattering gain medium providing laser-like action

Optical sources having a strongly scattering gain medium providing laser-like action

Optical sources having a strongly scattering gain medium providing laser-like action

Photo-encoded selective etching for glass based microtechnology applications

Optically-based methods and apparatus for performing document authentication

Optical sources having a strongly scattering gain medium providing laser-like action

Ultrasonic alternative to laser-based photodynamic therapy

Microlenses and other optical elements fabricated by laser heating of semiconductor doped and other absorbing glasses

Microlenses and other optical elements fabricated by laser heating of semiconductor doped and other absorbing glasses

Optically-based methods and apparatus for sorting garments and other textiles

INTELLECTUAL PROPERTY DEV ASS

Self frequency doubling laser material using semiconductor microcrystallite doped glasses

Holographic optical memory using semiconductor microcrystallite doped glasses and method using same

Optically encoded phase matched second harmonic generation device and self frequency doubling laser material using semiconductor microcrystallite doped glasses

Optically encoded phase matched second harmonic generation, self frequency doubling laser material, and optical switch using semiconductor microcrystallite doped glasses

Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses

Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses

LAWANDY NABIL M

Ordered colloidal suspension optical devices

Methods for fabricating frequency doubling polymeric waveguides having optimally efficient periodic modulation zone and polymeric waveguides fabricated thereby

Gas activated changes to light absorption and emission characteristics for security articles

Methods and systems for authenticating and tracking objects

Fluorescence notch coding and authentication

SPECTRADISC CORP

Methods and apparatus for rendering an optically encoded medium unreadable

Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant

FLEXPLAY TECHNOLOGIES INC

Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant

Methods and apparatus for rendering an optically encoded medium unreadable

(unassigned)

High density optically encoded information storage using second harmonic generation in silicate glasses

SOLARIS NANOSCIENCES INC

Anisotropic nanoparticles and anisotropic nanostructures and pixels, displays and inks using them