Jurgen Pietsch

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Monchengladbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
2-Roll piercing mill and method of producing hollow blocks from hig...
- Patent number 6,260,396
- Issue date Jul 17, 2001
- SMS Demag AG
- Werner Henze
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for the production of seamless tubes
- Patent number 6,089,066
- Issue date Jul 18, 2000
- Mannesmann AG
- Ettore Cernuschi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for calibration of assel rollers
- Patent number 5,649,440
- Issue date Jul 22, 1997
- Mannesmann Aktiengesellschaft
- Gheorghe Arnautu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for the rolling of hallow ingots on a assel rolling mill
- Patent number 5,642,638
- Issue date Jul 1, 1997
- Mannesmann Aktiengesellschaft
- Jurgen Pietsch
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...