Per-Olof Liljebrand

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Sandviken, SE

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Patents Grantslast 30 patents

Information Patent Grant
Thread joint
- Patent number 7,624,822
- Issue date Dec 1, 2009
- Sandvik Intellectual Property AB
- Urban Olsson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Male portion, drill bit and threaded joint for percussive rock dril...
- Patent number 7,185,721
- Issue date Mar 6, 2007
- Sandvik Intellectual Property AB
- Bo Carlström
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Thread joint percussive drilling equipment
- Patent number 6,293,360
- Issue date Sep 25, 2001
- Sandvik AB
- Per-Olof Liljebrand
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rock drilling tool and reamer for percussive drilling
- Patent number 6,202,768
- Issue date Mar 20, 2001
- Sandvik AB
- Daniel Lindgren
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method, drilling tool and rock drill bit for transferring impact en...
- Patent number 6,021,855
- Issue date Feb 8, 2000
- Sandvik AB
- Rainer Beccu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rock drilling tool including a drill bit having a recess in a front...
- Patent number 5,890,551
- Issue date Apr 6, 1999
- Sandvik AB
- Per-Olof Liljebrand
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Thread Joint
- Publication number 20080304904
- Publication date Dec 11, 2008
- Urban Olsson
- E21 - EARTH DRILLING MINING
Information Patent Application
Male portion, drill bit and threaded joint for percussive rock dril...
- Publication number 20040050592
- Publication date Mar 18, 2004
- SANDVIK AB
- Bo Carlstrom
- E21 - EARTH DRILLING MINING
Information Patent Application
Thread joint for percussive drilling and parts therefor
- Publication number 20020074797
- Publication date Jun 20, 2002
- Per-Olof Liljebrand
- E21 - EARTH DRILLING MINING