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Patents Grants
last 30 patents
Information
Patent Grant
Polyimide from diamine and bismaleimide having azole ring
Patent number
5,244,999
Issue date
Sep 14, 1993
Petrochemie Danubia Gesellschaft m.b.H.
Heinz Horacek
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Bismaleimides and polyimides prepared therefrom
Patent number
5,194,545
Issue date
Mar 16, 1993
Petrochemie Danubia Gesellschaft m.b.H.
Heinz Horacek
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polyimide from bis-maleimide having azole ring
Patent number
5,175,224
Issue date
Dec 29, 1992
Petrochemie Danubia Gesellschaft m.b.H.
Heinz Horacek
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Extracting agents for poly-D(-)-3-hydroxybutyric acid
Patent number
4,968,611
Issue date
Nov 6, 1990
Petrochemie Danubia Gesellschaft m.b.H.
Heinz Traussnig
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...