Inventor · disambiguated record
Wolfram Sowa
Also filed as: SOWA WOLFRAM
9 granted patents·2 pending applications·57 citations·filing 1995–2010
85Inventor score
Files withPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH5DELLIAN HARALD1GERBER MAXIMILIAN1OSRAM AG1OSRAM GMBH1
Top patents by PatentIndex Score
11 records- 0172US8390209B2Circuit arrangement for conversion of an input AC voltage to a DC voltage, retrofit lamp having a circuit arrangement such as this, as well as a lighting systemDELLIAN HARALD·Filed 2010·Granted Mar 5, 2013·4 cites·6 claims
- 0268US7274578B2Converter circuit having class E converter modulesPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2005·Granted Sep 25, 2007·3 cites·18 claims
- 0364US5493182AFluorescent lamp operating circuit, permitting dimming of the lampPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 1995·Granted Feb 20, 1996·34 cites·10 claims
- 0462US7564673B2Control circuit for convertersOSRAM GMBH·Filed 2005·Granted Jul 21, 2009·2 cites·17 claims
- 0562US7394207B2Circuit arrangement having a full bridge with switching load relief for operating lampsPATENT TREUHAND GES FUER GLUEH·Filed 2005·Granted Jul 1, 2008·2 cites·10 claims
- 0658US8054003B2Switch-off time regulation system for an inverter for driving a lampOSRAM AG·Filed 2007·Granted Nov 8, 2011·1 cites·15 claims
- 0752US6747418B2Device and method for preheating the coil electrodes of a fluorescent lampPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2002·Granted Jun 8, 2004·5 cites·6 claims
- 0846US6768271B2Ballast and method for operating a lampPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2003·Granted Jul 27, 2004·6 cites·10 claims
- 0937US2005184678A1Starting device for a high-pressure discharge lamp, and an illuminating systemFiled 2004·Application pending·0 cites
- 1033US8587210B2Electronic ballast for operating at least one discharge lampGERBER MAXIMILIAN·Filed 2010·Granted Nov 19, 2013·0 cites·13 claims
- 1131US2004012345A1Operating device for gas discharge lampsPATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →