Walter Karpellus

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Innsbruck, AT

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Patents Grantslast 30 patents

Information Patent Grant
Rock bolt
- Patent number 4,984,937
- Issue date Jan 15, 1991
- Ingenieure Mayreder, Kraus & Co. Baugesellschaft m.b.H.
- Walter Karpellus
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR DRILLING HOLES IN SOIL OR ROCK MATERIAL AND FOR FIXING A...
- Publication number 20150204152
- Publication date Jul 23, 2015
- DYWIDAG-Systerns International GmbH
- Karl Boehm
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
METHOD FOR THE DRILLING, IN PARTICULAR PERCUSSION OR ROTARY PERCUSS...
- Publication number 20120247835
- Publication date Oct 4, 2012
- Karl Böhm
- E21 - EARTH DRILLING MINING
Information Patent Application
PIPE CONNECTION AND DEVICE FOR FORMING A PIPE CONNECTION
- Publication number 20120139237
- Publication date Jun 7, 2012
- Karl Böhm
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND DEVICE FOR DRILLING A HOLE IN GROUND OR ROCK MATERIAL AN...
- Publication number 20100282513
- Publication date Nov 11, 2010
- Karl Böhm
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and device for drilling, particularly percussion or rotary p...
- Publication number 20090133933
- Publication date May 28, 2009
- Walter Karpellus
- E21 - EARTH DRILLING MINING