INTEGRATED SYSTEMS ENGINEERING, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5184114 Solid state color display system and light emitting diode pixels thereforExpiredMar 15, 90Feb 02, 93[G09G]
5143443 Light permeable, color adding, self-securing stressed covers for large display light-emitting devices, and methodsExpiredAug 31, 90Sep 01, 92[F21V, H01K]
5068577 Constant current drive system for fluorescent tubesExpiredNov 19, 90Nov 26, 91[H05B]
4531121 Electromechanical discrete element and a large sign or displayExpiredOct 29, 82Jul 23, 85[G09G]
4201002 Continuous visual display apparatusExpiredMay 20, 77May 06, 80[G09F]

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