Bruno H Walter

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Vancouver, CA

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Patents Grantslast 30 patents

Information Patent Grant
Down hole multiple piston tools operated by pulse generation tools...
- Patent number 8,322,463
- Issue date Dec 4, 2012
- Lewal Drilling Ltd.
- Bruno H. Walter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tubular handling device
- Patent number 7,784,551
- Issue date Aug 31, 2010
- Tesco Corporation
- Per G. Angman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lining well bore junctions
- Patent number 7,373,984
- Issue date May 20, 2008
- CDX Gas, LLC
- Christopher A. Pratt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable window liner
- Patent number 7,299,864
- Issue date Nov 27, 2007
- CDX Gas, LLC
- Christopher A. Pratt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve method for drilling with casing using pressurized drilling fluid
- Patent number 7,140,455
- Issue date Nov 28, 2006
- Tesco Corporation
- Bruno H. Walter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Acoustic flow pulsing apparatus and method for drill string
- Patent number 7,059,426
- Issue date Jun 13, 2006
- Lewal Drilling Ltd.
- Bruno Walter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Acoustic flow pulsing apparatus and method for drill string
- Patent number 6,910,542
- Issue date Jun 28, 2005
- Lewal Drilling Ltd.
- Bruno Walter
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWN HOLE MULTIPLE PISTON TOOLS OPERATED BY PULSE GENERATION TOOLS...
- Publication number 20100065330
- Publication date Mar 18, 2010
- LEWAL DRILLING LTD.
- Bruno H. Walter
- E21 - EARTH DRILLING MINING
Information Patent Application
TUBULAR GRIPPING DEVICE
- Publication number 20080210439
- Publication date Sep 4, 2008
- TESCO Corporation
- PER G. ANGMAN
- E21 - EARTH DRILLING MINING
Information Patent Application
Lining well bore junctions
- Publication number 20060131032
- Publication date Jun 22, 2006
- Christopher A. Pratt
- E21 - EARTH DRILLING MINING
Information Patent Application
Adjustable window liner
- Publication number 20060131026
- Publication date Jun 22, 2006
- Christopher A. Pratt
- E21 - EARTH DRILLING MINING
Information Patent Application
Expandable bit
- Publication number 20060096785
- Publication date May 11, 2006
- Bruno H. Walter
- E21 - EARTH DRILLING MINING
Information Patent Application
Valve method for drilling with casing using pressurized drilling fluid
- Publication number 20060037784
- Publication date Feb 23, 2006
- Bruno H Walter
- E21 - EARTH DRILLING MINING
Information Patent Application
Acoustic flow pulsing apparatus and method for drill string
- Publication number 20050236190
- Publication date Oct 27, 2005
- Lewal Drilling Ltd.
- Bruno Walter
- E21 - EARTH DRILLING MINING