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Roland Michal
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Pforzheim, DE
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last 30 patents
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Patent Grant
Ignition distributor cap with a shielding hood and shielding hood,...
Patent number
5,911,204
Issue date
Jun 15, 1999
Mercedes-Benz Aktiengesellshaft
Klaus Bahm
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Material for electric contacts of silver with carbon
Patent number
5,445,895
Issue date
Aug 29, 1995
Doduco GmbH and Co. Dr. Eugen Durrwachter
Volker Behrens
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition distributor for internal combustion engines
Patent number
5,416,292
Issue date
May 16, 1995
Doduco GmbH & Co.
Horst Behnke
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Semifinished product for electric contacts made of a composite mate...
Patent number
5,360,673
Issue date
Nov 1, 1994
Doduco GmbH + Co. Dr. Eugen Durrwachter
Ursula Mayer
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electrode for pulsed gas lasers
Patent number
5,220,575
Issue date
Jun 15, 1993
Doduco GmbH + Dr. Eugen Durrwachter
Wolfgang Bosch
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ignition distributor for internal combustion engines
Patent number
5,078,103
Issue date
Jan 7, 1992
Doduco GmbH & Co.
Klaus Bahm
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Material for electric contacts having arc-quenching properties
Patent number
4,778,958
Issue date
Oct 18, 1988
Doduco KG Dr. Eugen Durrwachter
Ursula Mayer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electric power circuit breaker
Patent number
4,644,118
Issue date
Feb 17, 1987
Doduco KG Dr. Eugen Durrwachter
Bruno Gengenbach
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrical switching element
Patent number
4,594,489
Issue date
Jun 10, 1986
Doduco KG Dr. Eugen Durrwachter
Bruno Gengenbach
H01 - BASIC ELECTRIC ELEMENTS