Lee; Sheng-Hann

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lee; Sheng-Hann.The latest application filed is for "flicker-free converter for driving light-emitting diodes".

Company Profile

2.11.5

Lee; Sheng-Hann - Saratoga CA
Lee; Sheng-Hann - Cupertino CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Light emitting diode control circuit with controller DC bias and AC power lines load current management Grant 10,292,218 - Lee	2019-05-14
Flicker-free converter for driving light-emitting diodes Grant 9,166,467 - Lee October 20, 2	2015-10-20
Flicker-free Converter For Driving Light-emitting Diodes App 20150115812 - Lee; Sheng-Hann	2015-04-30
Advanced electronic ballasts Grant 8,264,160 - Lee September 11, 2	2012-09-11
Variable-inductor Electronic Ballasts App 20120146537 - Lee; Sheng-Hann	2012-06-14
Self-oscillating transformerless electronic ballast Grant 8,174,201 - Lee May 8, 2	2012-05-08
Advanced Electronic Ballasts App 20110057574 - Lee; Sheng-Hann	2011-03-10
Self-oscillating Transformerless Electronic Ballast App 20100244715 - Lee; Sheng-Hann	2010-09-30
Gain stage that minimizes the miller effect Grant 6,690,231 - Lee February 10, 2	2004-02-10
Method and system for utilizing a high-performance mixer as a complete receiver Grant 6,667,649 - Lee December 23, 2	2003-12-23
Self-shielding inductor for multi-layer semiconductor integrated circuits Grant 5,831,331 - Lee November 3, 1	1998-11-03
Window cleaning fluid heating system having timer-controlled heater and differential input circuit Grant 5,354,965 - Lee October 11, 1	1994-10-11

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