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US7589752 - Two-sided thermal printing - 09/15/2009
US7411723 - Multi-stage optical switching device - 08/12/2008
US7391161 - Series wired light string with unidirectional shunts - 06/24/2008
US7342327 - Series connected light string with filament shunting - 03/11/2008
US7339325 - Series wired light string with unidirectional resistive shunts - 03/04/2008
Patent Applications
1. 20100052535 MINIATURE LIGHT BULB FOR RANDOM HIGH-LOW TWINKLE IN A SERIES-WIRED LIGHT STRING 03-04-2010
2. 20100045186 DUAL BRIGHTNESS TWINKLE IN A MINIATURE LIGHT BULB 02-25-2010
3. 20090129077 SERIES-WIRED LED LIGHT STRING WITH UNIDIRECTIONAL SHUNTS 05-21-2009
4. 20090128042 GOLD OR SILVER PLATED WIRE LEADS ON CHRISTMAS LIGHTS 05-21-2009
5. 20090091263 CAPACITOR SHUNTED LED LIGHT STRING - series connected LED light string using capacitors as shunts 04-09-2009
6. 20090058259 QUENCHED PHOSPHOR DISPLAYS WITH PIXEL AMPLIFICATION 03-05-2009
7. 20090039794 MINIATURE LIGHT BULB FOR RANDOM HIGH-LOW TWINKLE IN SERIES-WIRED LIGHT STRING 02-12-2009
8. 20080252220 SERIES WIRED LIGHT STRING WITH SHUNTS AND FLASHER BULBS FOR EXHIBITING A TWINKLING EFFECT 10-16-2008