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Patents Grants
last 30 patents
Information
Patent Grant
Gas purging device
Patent number
5,437,435
Issue date
Aug 1, 1995
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Lorenz Dotsch
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for preparing benzo(a)pyrene-free, carbon-containing, refra...
Patent number
5,403,526
Issue date
Apr 4, 1995
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Gunnar Kloss
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Free-flowing refractory casting slip
Patent number
5,362,692
Issue date
Nov 8, 1994
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Matgorzata Bugajski
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Gas purging plug
Patent number
5,312,092
Issue date
May 17, 1994
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Jens Decker
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Gas purging plug for electric-arc furnaces and the corresponding el...
Patent number
5,299,785
Issue date
Apr 5, 1994
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Georgio Cappelli
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for purifying exhaust air from plant parts of oil mills
Patent number
5,259,868
Issue date
Nov 9, 1993
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Franz Doubrawa
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for producing a gas purging plug with increased resistance...
Patent number
5,225,247
Issue date
Jul 6, 1993
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Lorenz Dotsch
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Gas plug for metallurgical smelting crucibles
Patent number
5,152,954
Issue date
Oct 6, 1992
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Preyer Helmut
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Procedure for manufacturing of fireproof ceramic molded parts
Patent number
5,124,099
Issue date
Jun 23, 1992
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Uwe Schatz
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for producing carbon-bonded refractory ceramic moldings
Patent number
5,102,593
Issue date
Apr 7, 1992
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Lorenz Dotsch
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Keystone set
Patent number
5,069,015
Issue date
Dec 3, 1991
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Reinhold Steinwender
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Two-piece terminal brick
Patent number
5,060,915
Issue date
Oct 29, 1991
Radex-Heraklith Industriebeteiligungs Aktiengesellschaft
Sabine Altpeter
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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