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Ludwig Lange
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Bruehl, DE
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last 30 patents
Information
Patent Grant
Method of preparing lower sodium polysulfides from higher sodium po...
Patent number
5,080,881
Issue date
Jan 14, 1992
Degussa Aktiengesellschaft
Friedrich Bittner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing Na.sub.2 S (II)
Patent number
5,075,098
Issue date
Dec 24, 1991
Degussa Aktiengesellschaft
Friedrich Bittner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing Na.sub.2 S (III)
Patent number
5,039,505
Issue date
Aug 13, 1991
Degussa Aktiengesellschaft
Friedrich Bittner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing NA2S (I)
Patent number
5,039,506
Issue date
Aug 13, 1991
Degussa Aktiengesellschaft
Friedrich Bittner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Gastight container for warm storage and transport
Patent number
4,982,871
Issue date
Jan 8, 1991
Degussa Aktiengesellschaft
Manfred Kiecker
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Process for working up the filtration residue of crude sodium prepa...
Patent number
4,857,665
Issue date
Aug 15, 1989
Degussa Aktiengesellschaft
Walter Hinrichs
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for creating the flow properties to sodium-production filte...
Patent number
4,767,453
Issue date
Aug 30, 1988
Degussa Aktiengesellschaft
Walter Hinrichs
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for the production of sodium polysulfides from the elements...
Patent number
4,640,832
Issue date
Feb 3, 1987
Degussa Aktiengesellschaft
Friedrich Bittner
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Device and process for the fused-salt electrolysis of alkali metal...
Patent number
4,584,068
Issue date
Apr 22, 1986
Degussa Aktiengesellschaft
Walter Hinrichs
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Process for the continuous production of solid alkali metal strands
Patent number
4,536,938
Issue date
Aug 27, 1985
Degussa Aktiengesellschaft
Walter Hinrichs
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Process for the pyrogenic production of finely divided oxide of a m...
Patent number
4,347,229
Issue date
Aug 31, 1982
Degussa Aktiengesellschaft
Josef Schmid
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the pyrogenous production of very finely divided oxides...
Patent number
4,258,023
Issue date
Mar 24, 1981
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Josef Schmid
C01 - INORGANIC CHEMISTRY