Assignee
COLLARDIN GMBH GERHARD
DE·17 granted patents·221 citations·filing 1975–1989
Top patents by PatentIndex Score
17 records- 0180US4636264AAutodeposition post-bath rinse processCOLLARDIN GMBH GERHARD·Filed 1985·Granted Jan 13, 1987·35 cites·16 claims
- 0263US5026440AChromium free treatment before coating metal surfacesCOLLARDIN GMBH GERHARD·Filed 1989·Granted Jun 25, 1991·25 cites·20 claims
- 0360US4761189AProcess and aqueous compositions for treating metal surfacesCOLLARDIN GMBH GERHARD·Filed 1987·Granted Aug 2, 1988·21 cites·10 claims
- 0458US4775427APhosphate conversion coatings for composite metalsCOLLARDIN GMBH GERHARD·Filed 1987·Granted Oct 4, 1988·23 cites·26 claims
- 0553US4944813AProcess for phosphating metal surfacesCOLLARDIN GMBH GERHARD·Filed 1989·Granted Jul 31, 1990·16 cites·16 claims
- 0648US4968360AProcess for desludging phosphating baths and device for carrying out said processCOLLARDIN GMBH GERHARD·Filed 1988·Granted Nov 6, 1990·13 cites·13 claims
- 0747US4384900AMethod of treating metal surfaces prior to phosphatizationCOLLARDIN GMBH GERHARD·Filed 1980·Granted May 24, 1983·11 cites·10 claims
- 0846US4680064APhosphate conversion coating acceleratorsCOLLARDIN GMBH GERHARD·Filed 1985·Granted Jul 14, 1987·14 cites·36 claims
- 0945US4003761AProcess for the production of sprayed phosphate coats on iron and steelCOLLARDIN GMBH GERHARD·Filed 1975·Granted Jan 18, 1977·12 cites·10 claims
- 1043US4622078AProcess for the zinc/calcium phosphatizing of metal surfaces at low treatment temperaturesCOLLARDIN GMBH GERHARD·Filed 1985·Granted Nov 11, 1986·11 cites·14 claims
- 1141US4326894AProcess for the production of conversion layers on metal surfaces by the spray methodCOLLARDIN GMBH GERHARD·Filed 1981·Granted Apr 27, 1982·13 cites·8 claims
- 1240US4639319AElectrolyte stabilization of laticesCOLLARDIN GMBH GERHARD·Filed 1985·Granted Jan 27, 1987·5 cites·19 claims
- 1338US4762572AProcess for phosphating electrolytically zinc-coated metalsCOLLARDIN GMBH GERHARD·Filed 1986·Granted Aug 9, 1988·10 cites·29 claims
- 1431US4956016AAnticorrosive agents and use thereofCOLLARDIN GMBH GERHARD·Filed 1989·Granted Sep 11, 1990·3 cites·16 claims
- 1530US4707193AMethod for activating metal surfaces prior to zinc phosphationCOLLARDIN GMBH GERHARD·Filed 1986·Granted Nov 17, 1987·4 cites·24 claims
- 1627US4497668APhosphating process for zinc-plated metalsCOLLARDIN GMBH GERHARD·Filed 1983·Granted Feb 5, 1985·4 cites·20 claims
- 1718US4565611AAqueous electrolytes and method for electrodepositing nickel-cobalt alloysCOLLARDIN GMBH GERHARD·Filed 1985·Granted Jan 21, 1986·1 cites·21 claims
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