WD

William A. Draper

CL Cirrus Logic: 6 patents #239 of 1,131Top 25%
Koniniklijke Philips N.V.: 2 patents #2,768 of 7,486Top 40%
PB Philips Lighting Holding B.V.: 1 patents #438 of 962Top 50%
Overall (All Time): #572,645 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
9515485 Power control system with power drop out immunity and uncompromised startup time John L. Melanson, Zhaohui He 2016-12-06
9307601 Input voltage sensing for a switching power converter and a triac-based dimmer Zhaohui He, Rahul Singh, Eric J. King, John L. Melanson 2016-04-05
9155174 Phase control dimming compatible lighting systems Robert T. Grisamore 2015-10-06
9119262 Boost and linear LED control John L. Melanson 2015-08-25
9018851 Boost and linear LED control John L. Melanson 2015-04-28
8680771 Controller customization system with phase cut angle communication customization data encoding Robert T. Grisamore, Eric J. King, Michael A. Kost, John L. Melanson 2014-03-25
8487591 Power control system with power drop out immunity and uncompromised startup time John L. Melanson, Zhaohui He 2013-07-16
8482223 Calibration of lamps Robert T. Grisamore, John L. Melanson 2013-07-09
8362707 Light emitting diode based lighting system with time division ambient light feedback response John L. Melanson 2013-01-29