LEIFELD GMBH & CO. A GERMAN CORP

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D-4730 AHLEN, DE

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Patents Grantslast 30 patents

Information Patent Grant
Flow-forming-machine
- Patent number 5,676,007
- Issue date Oct 14, 1997
- Leifeld GmbH & Co.
- Karl-Heinz Kostermeier
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Flow-roller machine
- Patent number 5,323,630
- Issue date Jun 28, 1994
- Leifeld GmbH & Co.
- Helmut Wenzel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Spinning machine with at least one roller holder
- Patent number 5,220,817
- Issue date Jun 22, 1993
- Leifeld GmbH & Co.
- Helmut Wenzel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for the manufacturing of a deep-bed wheel rim
- Patent number 5,212,866
- Issue date May 25, 1993
- Leifeld GmbH & Co.
- Helmut Wenzel
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for producing sunken shapes on the outer circumference of...
- Patent number 5,133,204
- Issue date Jul 28, 1992
- Leifeld GmbH & Co.
- Helmut Wenzel
- B44 - DECORATIVE ARTS
Information Patent Grant
Process for manufacturing an asymmetric pulley from a metal disk
- Patent number 5,113,584
- Issue date May 19, 1992
- Leifeld GmbH & Co.
- Helmut Wenzel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process of forming a folded seam connection between two cup-shaped...
- Patent number 5,107,579
- Issue date Apr 28, 1992
- Leifeld GmbH & Co.
- Karl-Heinz Kostermeier
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of manufacturing a belt pulley
- Patent number 5,072,509
- Issue date Dec 17, 1991
- Leifeld GmbH & Co.
- Joachim Bichel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

LEIFELD GMBH & CO. A GERMAN CORP

Organization

Patents Grantslast 30 patents

Flow-forming-machine

Flow-roller machine

Spinning machine with at least one roller holder

Method for the manufacturing of a deep-bed wheel rim

Apparatus for producing sunken shapes on the outer circumference of...

Process for manufacturing an asymmetric pulley from a metal disk

Process of forming a folded seam connection between two cup-shaped...

Method of manufacturing a belt pulley