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Michael Petschel
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Rochester Hills, MI, US
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last 30 patents
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Patent Grant
Sludge reducing zinc phosphating process and composition
Patent number
5,900,073
Issue date
May 4, 1999
Henkel Corporation
Michael L. Sienkowski
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Moderate temperature manganese phosphate conversion coating composi...
Patent number
5,728,235
Issue date
Mar 17, 1998
Henkel Corporation
Mervet S. Boulos
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Moderate temperature manganese phosphate conversion coating composi...
Patent number
5,595,611
Issue date
Jan 21, 1997
Henkel Corporation
Mervet S. Boulos
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Phosphate conversion coating and compositions and concentrates ther...
Patent number
5,378,292
Issue date
Jan 3, 1995
Henkel Corporation
Robert W. Miller
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...