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Inventor

SOWA WOLFRAM

DE9 patents
⚠️ This page may combine multiple inventors who share the name “SOWA WOLFRAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH

4 patents
US5493182AFeb 20, 1996

Fluorescent lamp operating circuit, permitting dimming of the lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH34 citations85
US7274578B2Sep 25, 2007

Converter circuit having class E converter modules

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH3 citations61
US6768271B2Jul 27, 2004

Ballast and method for operating a lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH6 citations61
US6747418B2Jun 8, 2004

Device and method for preheating the coil electrodes of a fluorescent lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH5 citations60

OSRAM GMBH

1 patent
US7564673B2Jul 21, 2009

Control circuit for converters

OSRAM GMBH2 citations61

DELLIAN HARALD

1 patent
US8390209B2Mar 5, 2013

Circuit 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 system

DELLIAN HARALD4 citations60

PATENT TREUHAND GES FUER GLUEH

1 patent
US7394207B2Jul 1, 2008

Circuit arrangement having a full bridge with switching load relief for operating lamps

PATENT TREUHAND GES FUER GLUEH2 citations60

OSRAM AG

1 patent
US8054003B2Nov 8, 2011

Switch-off time regulation system for an inverter for driving a lamp

OSRAM AG1 citations49

GERBER MAXIMILIAN

1 patent
US8587210B2Nov 19, 2013

Electronic ballast for operating at least one discharge lamp

GERBER MAXIMILIAN0 citations31