Assignee
HEP TECH CO LTD
TW·20 granted patents·9 pending applications·20 citations·filing 2004–2017
Top patents by PatentIndex Score
29 records- 0190US9775222B1Wireless detection and control device, and lighting device having the sameHEP TECH CO LTD·Filed 2017·Granted Sep 26, 2017·10 cites·20 claims
- 0271US9609727B2Lighting device and lighting control system having the sameHEP TECH CO LTD·Filed 2015·Granted Mar 28, 2017·2 cites·20 claims
- 0368US7781981B2Circuit arrangement for a starting unit of a discharge lampHEP TECH CO LTD·Filed 2005·Granted Aug 24, 2010·4 cites·16 claims
- 0461US9516717B2Dimmable LED illuminating system, driver of the illuminating system, and method of driving the illuminating systemHEP TECH CO LTD·Filed 2014·Granted Dec 6, 2016·1 cites·18 claims
- 0551US9078322B2Method of driving LED chips of different specificationsHEP TECH CO LTD·Filed 2014·Granted Jul 7, 2015·0 cites·7 claims
- 0651US8896226B2Constant-power power supply apparatus and method of supplying constant-power powerHEP TECH CO LTD·Filed 2014·Granted Nov 25, 2014·0 cites·16 claims
- 0750US9420655B2Method of driving LED chips of same power but different rated voltages and currentsHEP TECH CO LTD·Filed 2014·Granted Aug 16, 2016·0 cites·12 claims
- 0850US9131579B2Driving apparatus for LED chips of different specificationsHEP TECH CO LTD·Filed 2014·Granted Sep 8, 2015·0 cites·12 claims
- 0950US9078326B2Dimmable LED lampHEP TECH CO LTD·Filed 2014·Granted Jul 7, 2015·0 cites·9 claims
- 1049US9101002B2Method of controlling multiple lampsHEP TECH CO LTD·Filed 2014·Granted Aug 4, 2015·0 cites·9 claims
- 1148US9101000B2Dimmable LED illuminating systemHEP TECH CO LTD·Filed 2014·Granted Aug 4, 2015·0 cites·10 claims
- 1247US9282617B2Illumination system and phase signal transmitter of the sameHEP TECH CO LTD·Filed 2014·Granted Mar 8, 2016·0 cites·18 claims
- 1344US9455634B2DC-DC power conversion apparatusHEP TECH CO LTD·Filed 2014·Granted Sep 27, 2016·0 cites·10 claims
- 1442US2016285383A1Power conversion device and conversion method thereofHEP TECH CO LTD·Filed 2014·Application pending·0 cites
- 1542US2017163166A1Ac-ac voltage transformation device and voltage transformation method thereofHEP TECH CO LTD·Filed 2014·Application pending·0 cites
- 1642US2016301299A1Isolated ac-dc conversion device and conversion method thereofHEP TECH CO LTD·Filed 2014·Application pending·0 cites
- 1742US2016301315A1Flyback ac-dc conversion device and conversion method thereofHEP TECH CO LTD·Filed 2014·Application pending·0 cites
- 1842US2016380549A1Ac-ac power source conversion device and conversion method thereofHEP TECH CO LTD·Filed 2014·Application pending·0 cites
- 1941US9419525B2Isolated power conversion apparatus and method of converting powerHEP TECH CO LTD·Filed 2013·Granted Aug 16, 2016·0 cites·11 claims
- 2041US9203297B2AC/DC converter and method of correcting power factorHEP TECH CO LTD·Filed 2013·Granted Dec 1, 2015·0 cites·10 claims
- 2141US8854844B2AC/DC converter with passive power factor correction circuit and method of correcting power factorHEP TECH CO LTD·Filed 2013·Granted Oct 7, 2014·0 cites·8 claims
- 2240US9000832B1SwitchHEP TECH CO LTD·Filed 2014·Granted Apr 7, 2015·0 cites·10 claims
- 2339US9264036B2Method of transmitting signalsHEP TECH CO LTD·Filed 2014·Granted Feb 16, 2016·0 cites·18 claims
- 2438US7279844B2Electronic ballastHEP TECH CO LTD·Filed 2004·Granted Oct 9, 2007·3 cites·4 claims
- 2538US2017127500A1Signal conversion device and lighting device including the sameHEP TECH CO LTD·Filed 2016·Application pending·0 cites
- 2637US9629228B2Electric energy supply device with data bridge function and wireless lighting control system including the sameHEP TECH CO LTD·Filed 2016·Granted Apr 18, 2017·0 cites·21 claims
- 2737US2016381771A1Wireless detection device and lighting device including the sameHEP TECH CO LTD·Filed 2016·Application pending·0 cites
- 2836US2016374183A1Wired & wireless control system and data bridge method thereofHEP TECH CO LTD·Filed 2016·Application pending·0 cites
- 2930US2015280580A1Power conversion apparatusHEP TECH CO LTD·Filed 2015·Application pending·0 cites
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