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Hubert-Matthias Seidenspinner
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Berlin, DE
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last 30 patents
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Patent Grant
Conditioning agent for the treatment of base materials
Patent number
4,940,554
Issue date
Jul 10, 1990
Schering Aktiengesellschaft
Hans-Joachim Grapentin
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Process for the adhesive metallization of synthetic materials
Patent number
4,929,422
Issue date
May 29, 1990
Schering Aktiengesellschaft
Hartmut Mahlkow
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Conditioning agent for the treatment of base materials
Patent number
4,781,990
Issue date
Nov 1, 1988
Hans-Joachim Grapentin
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Sulfate and sulfonate beta-naphthol polyglycol ethers
Patent number
4,675,050
Issue date
Jun 23, 1987
Schering AG
Gunter Voss
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR