Inventor

PETSCHEL MICHAEL

US4 patents

Patents

4 patents

US5378292AJan 3, 1995

Phosphate conversion coating and compositions and concentrates therefor with stable internal accelerator

HENKEL CORP22 citations90

US5595611AJan 21, 1997

Moderate temperature manganese phosphate conversion coating composition and process

HENKEL CORP20 citations80

US5728235AMar 17, 1998

Moderate temperature manganese phosphate conversion coating composition and process

HENKEL CORP13 citations70

US5900073AMay 4, 1999

Sludge reducing zinc phosphating process and composition

HENKEL CORP5 citations60