IP Library › Granted Patent US 6,634,770
Granted Patent Utility
US 6,634,770 · Confirmation No. 2517

LIGHT SOURCE USING SEMICONDUCTOR DEVICES MOUNTED ON A HEAT SINK

Inventor: Densen Cao
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2012-10-01 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
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2001-08-24 DRW Drawings-only black and white line drawings 16 View
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2001-08-24 WFEE Fee Worksheet (SB06) 1 View
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Quick Facts
Patent No.
US 6,634,770
App. No.
09/938,876
Filed
2001-08-24
Granted
2003-10-21
Pub. No.
US20030039122A1
Art Unit
2875
PTA
-1 days