ASTON PHOTONIC TECHNOLOGIES LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6907165 Methods of fabricating a regenerated optical waveguide gratingExpiredAug 09, 02Jun 14, 05[G02B]
6833541 Dual-parameter optical waveguide grating sensing device and sensorExpiredSep 17, 02Dec 21, 04[G01J, G02B]
6768098 Fibre optic grating sensorExpiredJan 24, 02Jul 27, 04[G01J]

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