Dieter Hauffe

Person

Frankfurt am Main, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process of producing phosphate coatings
- Patent number 5,383,982
- Issue date Jan 24, 1995
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for a passivating postrinsing of conversion layers
- Patent number 5,294,266
- Issue date Mar 15, 1994
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process of forming phosphate coatings on metal surfaces
- Patent number 5,203,930
- Issue date Apr 20, 1993
- Metallgesellschaft Aktiengesellschaft
- Georg Blumlhuber
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of determining the weight of conversion layers per unit of area
- Patent number 5,165,795
- Issue date Nov 24, 1992
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- G01 - MEASURING TESTING
Information Patent Grant
Process of phosphating metal surfaces
- Patent number 5,039,361
- Issue date Aug 13, 1991
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process of determining the zinc content of phosphating baths
- Patent number 4,897,128
- Issue date Jan 30, 1990
- Metallgesellschaft Aktiengesellschaft
- Heinz Dosch
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process of producing phosphate coatings
- Patent number 4,867,853
- Issue date Sep 19, 1989
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process of producing phosphate coatings on metal surfaces
- Patent number 4,849,031
- Issue date Jul 18, 1989
- Metallgesellschaft Aktiengesellschaft
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for maintaining the zinc content in zinc phosphate baths
- Patent number 4,597,806
- Issue date Jul 1, 1986
- Parker Chemical Company
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for phosphatizing metals
- Patent number 4,419,199
- Issue date Dec 6, 1983
- Occidental Chemical Corporation
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Composition and process for the phosphatizing of metals
- Patent number 4,389,260
- Issue date Jun 21, 1983
- Occidental Chemical Corporation
- Dieter Hauffe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Dieter Hauffe

Person

Patents Grantslast 30 patents

Process of producing phosphate coatings

Process for a passivating postrinsing of conversion layers

Process of forming phosphate coatings on metal surfaces

Method of determining the weight of conversion layers per unit of area

Process of phosphating metal surfaces

Process of determining the zinc content of phosphating baths

Process of producing phosphate coatings

Process of producing phosphate coatings on metal surfaces

Process for maintaining the zinc content in zinc phosphate baths

Process for phosphatizing metals

Composition and process for the phosphatizing of metals