Inventor · disambiguated record
David Llewellyn John
Also filed as: JOHN DAVID LLEWELLYN
10 granted patents·1 pending application·33 citations·filing 2014–2019
85Inventor score
Top patents by PatentIndex Score
11 records- 0193US10680510B2AC/DC PFC converter using a half bridge resonant converter, and corresponding conversion methodSIGNIFY HOLDING BV·Filed 2017·Granted Jun 9, 2020·12 cites·15 claims
- 0284US10447148B2DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2017·Granted Oct 15, 2019·4 cites·14 claims
- 0382US10263510B2DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2017·Granted Apr 16, 2019·4 cites·15 claims
- 0481US9961728B2Driver device and driving methodPHILIPS LIGHTING HOLDING BV·Filed 2015·Granted May 1, 2018·4 cites·20 claims
- 0577US10879791B2DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2019·Granted Dec 29, 2020·2 cites·13 claims
- 0671US10734889B2DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2017·Granted Aug 4, 2020·2 cites·11 claims
- 0771US10447147B2DC/DC resonant converters and power factor correction using resonant converters, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2017·Granted Oct 15, 2019·2 cites·9 claims
- 0866US9595865B2Converter unit and method for converting a voltagePHILIPS LIGHTING HOLDING BV·Filed 2014·Granted Mar 14, 2017·3 cites·11 claims
- 0952US10454382B2Half bridge resonant converters, circuits using them, and corresponding control methodsSIGNIFY HOLDING BV·Filed 2017·Granted Oct 22, 2019·0 cites·15 claims
- 1050US9882506B2Multiple inductive componentPHILIPS LIGHTING HOLDING BV·Filed 2014·Granted Jan 30, 2018·0 cites·20 claims
- 1133US2017257018A1Inductive electrical component with auxiliary windingPHILIPS LIGHTING HOLDING BV·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →