Inventor · disambiguated record
Robert Erhardt
Also filed as: ERHARDT ROBERT · ERHARDT ROBERT A · ERHARDT ROBERT ALEXANDER
16 granted patents·5 pending applications·682 citations·filing 1988–2010
95Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV11PHILIPS CORP4PHILIPS ELECTRONICS NA3ERHARDT ROBERT A2ERHARDT ROBERT1
Top patents by PatentIndex Score
21 records- 0198US6853150B2Light emitting diode driverKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Feb 8, 2005·340 cites·28 claims
- 0286US5563473AElectronic ballast for operating lamps in parallelPHILIPS ELECTRONICS NA·Filed 1995·Granted Oct 8, 1996·73 cites·42 claims
- 0386US5187414AFluorescent lamp controllersPHILIPS CORP·Filed 1991·Granted Feb 16, 1993·60 cites·4 claims
- 0482US5111118AFluorescent lamp controllersPHILIPS CORP·Filed 1991·Granted May 5, 1992·53 cites·20 claims
- 0581US7830095B2LED assembly and moduleKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Granted Nov 9, 2010·10 cites·25 claims
- 0680US6373199B1Reducing stress on ignitor circuitry for gaseous discharge lampsPHILIPS ELECTRONICS NA·Filed 2000·Granted Apr 16, 2002·24 cites·10 claims
- 0775US6489729B1Auxiliary lighting system for high intensity discharge lampKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Dec 3, 2002·23 cites·25 claims
- 0872US6713973B2System and method of automatic cycling control for HID lampsKONINKL PHILIPS ELECTRONICS NV·Filed 2003·Granted Mar 30, 2004·13 cites·11 claims
- 0968US4952848ASignal generating circuit for ballast control of discharge lampsPHILIPS CORP·Filed 1988·Granted Aug 28, 1990·22 cites·16 claims
- 1062US6507157B1Electronic ballast system with dual power and dimming capabilityKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jan 14, 2003·18 cites·12 claims
- 1161US6853154B2Open loop bi-level ballast controlKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Feb 8, 2005·8 cites·9 claims
- 1259US6204614B1Bi-level output electronic high intensity discharge (HID) ballast systemPHILIPS ELECTRONICS NA·Filed 1999·Granted Mar 20, 2001·19 cites·22 claims
- 1356US6583588B2System and method of automatic cycling control for HID lampsKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jun 24, 2003·5 cites·35 claims
- 1452US6686703B2High frequency electronic ballastKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Feb 3, 2004·6 cites·12 claims
- 1546US2007018783A1Digital addressable lighting interface translation methodKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 1643US2008036401A1Dual Mode Lighting DeviceKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 1740US2008067956A1Lamp Power Circuit Sensing Method And SystemKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 1839US2010332115A1Method and apparatus for interactive routing and scheduling systemERHARDT ROBERT·Filed 2010·Application pending·0 cites
- 1938US9035571B2Electronic ballast with dimming circuitERHARDT ROBERT A·Filed 2010·Granted May 19, 2015·0 cites·22 claims
- 2038US5032767AHigh frequency oscillator-inverter with improved regenerative power supplyPHILIPS CORP·Filed 1990·Granted Jul 16, 1991·8 cites·9 claims
- 2123US2007029943A1Ballast with lampholder arc protectionERHARDT ROBERT A·Filed 2004·Application pending·0 cites
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