US Patent 7935972 Light emission device
Patent 7935972 was granted and assigned to Ivoclar Vivadent on May, 2011 by the United States Patent and Trademark Office.
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Patent abstract
The invention relates to a light emission device, comprising at least two light-emitting semiconductor chips and a substrate. At least one first semiconductor chip (12) is fitted on the substrate and a second semiconductor chip (14) is fitted on the first semiconductor chip (12).
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US Patent 07935972 Light emission device US Patent 7935972 Light emission device
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Patent Number
0793597200
Patent Number
793597200
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079359720
Date of Patent
May 3, 2011
0Patent Application Number
120754740
Date Filed
March 11, 2008
0Official Website
Patent Primary Examiner
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079359720
Date of Patent
May 3, 2011
0Patent Application Number
120754740
Date Filed
March 11, 2008
0Official Website
Patent Primary Examiner
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US Patent 07935972 Light emission device
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07935972
Date of patent
May 3, 2011
Patent application number
12075474
Date Filed
March 11, 2008
Patent primary examiner
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