Membership
Tour
Register
Log in
Karlheinz Bretthauer
Follow
Person
Clausthal-Zellerfeld, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Method for regulating the electrodes in a furnace having freely bur...
Patent number
4,701,932
Issue date
Oct 20, 1987
Fried. KRUPP Gesellschaft mit beschrankter Haftung
Karlheinz Bretthauer
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for regulating arc discharge furnace
Patent number
4,683,577
Issue date
Jul 28, 1987
Fried. KRUPP Gesellschaft mit beschrankter Haftung
Karlheinz Bretthauer
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and apparatus for electrically balancing three-phase arc dis...
Patent number
4,663,764
Issue date
May 5, 1987
Fried. Krupp Gesellschaft mit beschrankter/Haftung
Karlheinz Bretthauer
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electrode arrangement for electric arc furnaces
Patent number
4,459,697
Issue date
Jul 10, 1984
Fried. KRUPP Gesellschaft mit beschrankter Haftung
Karlheinz Bretthauer
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Conductor arrangement for a three-phase electric arc furnace
Patent number
4,425,658
Issue date
Jan 10, 1984
Fried. KRUPP Gesellschaft mit beschrankter Haftung
Karlheinz Bretthauer
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR