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Wulfrath, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for the cleaning of exhaust gas and prevention of explosions...
Patent number
6,074,620
Issue date
Jun 13, 2000
Rheinische Kalksteinwerke GmbH
Ekkehard Kienow
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the manufacture of milk of lime
Patent number
5,876,689
Issue date
Mar 2, 1999
Rheinische Kalksteinwerke GmbH
Michael Webeling
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for the production of chlorosilicates
Patent number
5,229,097
Issue date
Jul 20, 1993
Rheinische Kalksteinwerke GmbH
Alfred Roeder
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Process for producing calcium hydroxide
Patent number
4,636,379
Issue date
Jan 13, 1987
Rheinische Kalksteinwerke GmbH
Heinz Bestek
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Blast furnace for heating granular material
Patent number
4,249,894
Issue date
Feb 10, 1981
Rheinische Kalksteinwerke GmbH
Bernhard Schulze-Heil
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Bituminous mixed composition and filler for same containing non-hyg...
Patent number
4,242,144
Issue date
Dec 30, 1980
Rheinische Kalksteinwerke GmbH
Klaus Bergmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Process for the production of reactive calcium oxide
Patent number
3,991,172
Issue date
Nov 9, 1976
Rheinische Kalksteinwerke GmbH
Ewald Wicke
C01 - INORGANIC CHEMISTRY