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Patentes

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Patente citante Fecha de presentación Fecha de emisión Cesionario original Título
US429886925 Jun 19793 Nov 1981Zaidan Hojin Handotai Kenkyu ShinkokaiLight-emitting diode display
US50103361 Ago 198923 Abr 1991Jelp, Inc.Temporary traffic light control
US513268212 Sep 199021 Jul 1992Lectro Products, Inc.Apparatus for controlling traffic lights
US52085843 Sep 19914 May 1993Traffic light and back-up traffic controller
US53879086 May 19927 Feb 1995Traffic control system
US541638423 Feb 199316 May 1995Back-up lighting system
US542642922 Ene 199320 Jun 1995Airport Technology in Scandinavia ABSupervision and control of airport lighting and ground movements
US59176225 Feb 199729 Jun 1999deMco Technologies, Inc.Light device with holographic optics
US61218975 Ago 199819 Sep 2000Reliance Controls CorporationDedicated transfer switch for a single electrical load, such as a traffic signal
US639256315 Dic 199921 May 20029022-6523 Quebec Inc.Traffic light backup system using light-emitting diodes
US657384011 Mar 19973 Jun 2003Airport Technology in ScandinaviaSupervision and control of airport lighting and ground movements
US701540423 Feb 200421 Mar 2006Briggs & Stratton Power Products Group, LLCDo-it-yourself system for portable generator
US725087521 Jun 200531 Jul 2007Geh-Tran CorporationTraffic signal transfer switch
US74067875 Jul 20025 Ago 2008Illuminated road sign
US747150520 Mar 200630 Dic 2008Briggs & Stratton CorporationDo-it-yourself system for portable generator
US773786431 Jul 200715 Jun 2010Gen-Tran CorporationTraffic signal transfer switch with interlock constructions
US784336131 Jul 200730 Nov 2010Gen-Tran CorporationTraffic signal transfer switch with housing constructions