US Patent 7379720 Keypad lighting using polymer light emitting devices
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Patent Inventor Names
Gunnar Klinghult0
Mats Larsson0
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Patent abstract
At least one key of a keypad of an electronic device, such as a wireless terminal, includes a polymer light emitting device, also referred to as a polymer LED, thereon. A polymer LED may be on the inner and/or outer surface of the face of the key and may be unpatterned and/or patterned to form a symbol.
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US Patent 07379720 Keypad lighting using polymer light emitting devices US Patent 7379720 Keypad lighting using polymer light emitting devices
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Patent Number
07379720
Patent Number
7379720
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Official Website
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US Patent 07379720 Keypad lighting using polymer light emitting devices
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Patent jurisdiction
Patent number
07379720
Date of patent
May 27, 2008
Patent application number
10370399
Date Filed
February 20, 2003
Patent primary examiner
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