Peter Kalkenings

Follow

Person

Aachen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing welded Cu and Cu alloy pipes
- Patent number 6,401,323
- Issue date Jun 11, 2002
- SMS Demag AG
- Erling Roller
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold pilger rolling tool for producing internally ribbed tubes
- Patent number 6,205,833
- Issue date Mar 27, 2001
- SMS Demag Aktiengesellschaft
- Peter Kalkenings
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process and device for straight-drawing long drawing material in mu...
- Patent number 5,771,727
- Issue date Jun 30, 1998
- Mannesmann Aktiengesellschaft
- Horst Stinnertz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...