Knarrevik
Norway
6
2013-08-22
6
2015-04-07
These are the the leading inventors for applications assigned to Siem Wis AS:
Siem Wis AS based in Knarrevik, NO has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Grinding arrangement for tool joints on a drill string
#2 | 2011-12-22 ✅ Patent 8,985,229 granted on 2015-03-24Sealing arrangement, and corresponding method
#3 | 2010-09-23 ✅ Patent 8,403,034 granted on 2013-03-26Device and method for maintaining constant pressure on, and flow drill fluid, in a drill string
#4 | 2010-09-02 ✅ Patent 8,066,062 granted on 2011-11-29Seal for a drill string
#5 | 2009-08-27 ✅ Patent 8,474,253 granted on 2013-07-02Pressure accumulator to establish sufficient power to handle and operate external equipment and use thereof
#6 | 2009-07-02 ✅ Patent 8,100,189 granted on 2012-01-24System and method for dynamic sealing of a drill string
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