Siem Wis AS

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Knarrevik, NO

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Patents Grantslast 30 patents

Information Patent Grant
Grinding arrangement for tool joints on a drill string
- Patent number 8,997,851
- Issue date Apr 7, 2015
- Siem Wis AS
- Per Espen Edvardsen
- B24 - GRINDING POLISHING
Information Patent Grant
Sealing arrangement, and corresponding method
- Patent number 8,985,229
- Issue date Mar 24, 2015
- Siem Wis AS
- Per Espen Edvardsen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pressure accumulator to establish sufficient power to handle and op...
- Patent number 8,474,253
- Issue date Jul 2, 2013
- Siem Wis AS
- Tom Kjetill Askeland
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Device and method for maintaining constant pressure on, and flow dr...
- Patent number 8,403,034
- Issue date Mar 26, 2013
- Siem Wis AS
- Tom Kjetil Askeland
- E21 - EARTH DRILLING MINING
Information Patent Grant
System and method for dynamic sealing of a drill string
- Patent number 8,100,189
- Issue date Jan 24, 2012
- Siem Wis AS
- Per Espen Edvardson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal for a drill string
- Patent number 8,066,062
- Issue date Nov 29, 2011
- Siem Wis AS
- Per Espen Edvardsen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Pressure accumulator to establish sufficient power to handle and op...
- Publication number 20090211239
- Publication date Aug 27, 2009
- SIEM WIS AS
- Tom Kjetill Askeland
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Trademarklast 30 trademarks