Inventor
FROMM DIETRICH
DE11 patents
⚠️ This page may combine multiple inventors who share the name “FROMM DIETRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH
8 patentsUS5363007ANov 8, 1994
Low-power, high-pressure discharge lamp, particularly for general service illumination use
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH43 citations89
US5436533AJul 25, 1995
Method to operate a high-pressure discharge lamp suitable for horizontal arc position
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH21 citations87
US4171498AOct 16, 1979
High pressure electric discharge lamp containing metal halides
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH40 citations84
US4291254ASep 22, 1981
Discharge lamp energization circuit, particularly for audio and supersonic frequency operation of high-pressure discharge lamps
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH24 citations80
US4633136ADec 30, 1986
High-pressure discharge lamp with low power input
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH20 citations75
US5821696AOct 13, 1998
Method and circuit to start and operate high pressure discharge lamps
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH10 citations72
US5210463AMay 11, 1993
Metal halide low-power high-pressure discharge lamp
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH10 citations72
US5461281AOct 24, 1995
High-pressure discharge lamp with a halide fill including life-extending additives
PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH19 citations66