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Bernhard Schaefer
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Darmstadt, DE
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Patents Grants
last 30 patents
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Patent Grant
Method and device for regulating pressure in a single-screw degassi...
Patent number
7,128,464
Issue date
Oct 31, 2006
Roehm GmbH & Co KG
Bernhard Schaefer
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Methods for the production of films
Patent number
6,420,033
Issue date
Jul 16, 2002
Roehm GmbH & Co KG
Uwe Numrich
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
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Patent Application
Plastic body having low thermal conductivity, high light transmissi...
Publication number
20040191485
Publication date
Sep 30, 2004
Herbert Groothues
B32 - LAYERED PRODUCTS