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Ernst-Christoph Prolingheuer
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Herne, DE
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last 30 patents
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Patent Grant
Polyurethane sandwich structure element and process for production...
Patent number
5,856,371
Issue date
Jan 5, 1999
Bayer Aktiengesellschaft
Wolfgang Grimm
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Process for the preparation of a cellular polyurethane
Patent number
4,500,656
Issue date
Feb 19, 1985
Bayer Aktiengesellschaft
Werner Rasshofer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...