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Patents Grants
last 30 patents
Information
Patent Grant
Method for the removal of oxygen dissolved in water
Patent number
4,540,494
Issue date
Sep 10, 1985
VEB Leuna-Werke "Walter Ulbricht"
Wilfried Fuchs
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method for improving the initial activity of activated hydrazine
Patent number
4,532,068
Issue date
Jul 30, 1985
VEB-Leuna-Werke "Walter Ulbricht"
Wilfried Fuchs
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for improving the initial activity of activated hydrazine
Patent number
4,519,997
Issue date
May 28, 1985
VEB-Leuna-Werke "Walter Ulbricht"
Wilfried Fuchs
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Process for the production of epoxide resins
Patent number
4,306,054
Issue date
Dec 15, 1981
Veb Leuna-Werke "Walter Ulbricht" Leuna
Ferdinand Alber
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for working additive into polymers, particularly polymers w...
Patent number
4,153,762
Issue date
May 8, 1979
VEB Leuna-Werke "Walter Ulbricht"
Werner Lauterberg
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the two-stage separation of ammonia
Patent number
4,149,857
Issue date
Apr 17, 1979
VEB Leuna-Werke "Walter Ulbricht"
Wilfried Volke
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Methods for reactivating zeolites
Patent number
4,043,938
Issue date
Aug 23, 1977
VEB Leuna-Werke "Walter Ulbricht"
Hans-Heinrich Reif
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Foamed thermoplastic leather and textile substitute material
Patent number
3,984,597
Issue date
Oct 5, 1976
VEB Leuna-Werke "Walter Ulbricht"
Dieter Haack
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Textile floor covering with bottom of thermoplastic foam and a meth...
Patent number
3,975,562
Issue date
Aug 17, 1976
VEB Leuna-Werke "Walter Ulbricht"
Karl-Heinz Madebach
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...