P

Inventor

SCHEMMEL BERNHARD

DE11 patents
⚠️ This page may combine multiple inventors who share the name “SCHEMMEL BERNHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH

6 patents
US6198231B1Mar 6, 2001

Circuit configuration for operating at least one discharge lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH28 citations91
US6555970B2Apr 29, 2003

Ballast for gas discharge lamps with shutdown of the filament heating

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH7 citations71
US7309963B2Dec 18, 2007

Smoothing circuit for improving EMC

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH2 citations61
US6753659B2Jun 22, 2004

Operating device for discharge lamps having a preheating device

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH3 citations61
US6657403B2Dec 2, 2003

Circuit arrangement for operating a fluorescent lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH4 citations60
US7327094B2Feb 5, 2008

Circuit arrangement and method for operating at least one electric lamp

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH0 citations50

BUSSE OLAF

2 patents
US8134297B2Mar 13, 2012

Ballast for a discharge lamp with adaptive preheating

BUSSE OLAF10 citations81
US8558459B2Oct 15, 2013

Electronic ballast and method for operating an electrical lamp

BUSSE OLAF1 citations50

OSRAM GMBH

2 patents
US7863830B2Jan 4, 2011

Electronic ballast and method for operating an electric lamp

OSRAM GMBH2 citations59
US7786683B2Aug 31, 2010

Circuit arrangement and method for operating at least one electric lamp and at least one LED

OSRAM GMBH0 citations40

HIERL WOLFGANG

1 patent
US8319446B2Nov 27, 2012

Circuit for controlling a fluorescent lamp, method for operating the circuit, and system comprising the circuit

HIERL WOLFGANG0 citations38