P

Inventor

TWESTEN KAREN

DE7 patents
⚠️ This page may combine multiple inventors who share the name “TWESTEN KAREN”. 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
US5920400AJul 6, 1999

Method and device for determining the purity and/or pressure of gases for electric lamps

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH11 citations69
US7253562B2Aug 7, 2007

Lamp which is closed on two sides

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH3 citations59
US7221098B2May 22, 2007

Electric lamp with outer bulb and associated support body

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH2 citations59
US7112116B2Sep 26, 2006

Process for producing an electric lamp with outer bulb

PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH2 citations59

OSRAM GMBH

2 patents
US7977854B2Jul 12, 2011

Component for an electric lamp with outer bulb

OSRAM GMBH1 citations45
US7745999B2Jun 29, 2010

Lamp which is closed on two sides

OSRAM GMBH0 citations42

PATENT TREUHAND GES F ELEK SCH

1 patent
US6617790B2Sep 9, 2003

Metal halide lamp with ceramic discharge vessel

PATENT TREUHAND GES F ELEK SCH0 citations49