Karl-Heinz Gottwald

Person

Erftstadt, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Phosphating process with a metalliferous re-rinsing stage
- Patent number 6,395,105
- Issue date May 28, 2002
- Henkel Kommanditgesellschaft auf Aktien
- Winfried Wichelhaus
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Nickel-free phosphating process
- Patent number 6,197,126
- Issue date Mar 6, 2001
- Henkel Kommanditgesellschaft auf Aktien
- Wolf-Achim Roland
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Phosphating process with a copper-containing re-rinsing stage
- Patent number 6,090,224
- Issue date Jul 18, 2000
- Henkel Kommanditgesellschaft auf Aktien
- Winfried Wichelhaus
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Nickel-free phosphating process
- Patent number 5,792,283
- Issue date Aug 11, 1998
- Henkel Kommanditgesellschaft auf Aktien
- Wolf-Achim Roland
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for the passivating post-treatment of phosphatized metal su...
- Patent number 5,391,240
- Issue date Feb 21, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Reinhard Seidel
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process not using chlorate or nitrite for the production of nickel...
- Patent number 5,312,492
- Issue date May 17, 1994
- Henkel Kommanditgesellschaft auf Aktien
- Joerg Riesop
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for preparing zinc phosphate coatings containing manganese...
- Patent number 5,207,840
- Issue date May 4, 1993
- Henkel Kommanditgesellschaft auf Aktien
- Joerg Riesop
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for desludging phosphating baths and device for carrying ou...
- Patent number 4,968,360
- Issue date Nov 6, 1990
- Gerhard Collardin GmbH
- Kurt Hosemann
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for phosphating electrolytically zinc-coated metals
- Patent number 4,762,572
- Issue date Aug 9, 1988
- Gerhard Collardin GmbH
- Raschad Mady
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Phosphating solutions and process
- Patent number 4,490,185
- Issue date Dec 25, 1984
- Henkel Kommanditgesellschaft auf Aktien
- Karl-Heinz Gottwald
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of treating metal surfaces prior to phosphatization
- Patent number 4,384,900
- Issue date May 24, 1983
- Gerhard Collardin GmbH
- Hans Gotta
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Karl-Heinz Gottwald

Person

Patents Grantslast 30 patents

Phosphating process with a metalliferous re-rinsing stage

Nickel-free phosphating process

Phosphating process with a copper-containing re-rinsing stage

Nickel-free phosphating process

Process for the passivating post-treatment of phosphatized metal su...

Process not using chlorate or nitrite for the production of nickel...

Process for preparing zinc phosphate coatings containing manganese...

Process for desludging phosphating baths and device for carrying ou...

Process for phosphating electrolytically zinc-coated metals

Phosphating solutions and process

Method of treating metal surfaces prior to phosphatization