Stena Drilling Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 888
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 137
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9347281 Triple activity drilling shipJun 09, 15May 24, 16[B63B, E21B]
9222327 Well safety equipmentNov 28, 12Dec 29, 15[E21B]
9067649 Ice breaking drilling vessel with stowable mastApr 02, 14Jun 30, 15[B63B, E21B]
8925647 Triple activity drilling shipJun 30, 06Jan 06, 15[E21B]
8678094 Multiple activity rigJun 01, 05Mar 25, 14[E21B]
8176985 Well drilling and production using a surface blowout preventerSep 03, 09May 15, 12[E21B]
8162063 Dual gradient drilling shipSep 03, 10Apr 24, 12[E21B]
7144048 Composite marine riserMay 05, 04Dec 05, 06[F16L]
7032691 Underbalanced well drilling and productionOct 30, 03Apr 25, 06[E21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0190,701 APPARATUS AND METHOD FOR SUBSEA WELL DRILLING AND CONTROLAbandonedMar 11, 14Jul 10, 14[E21B]
2012/0291,684 Ice Breaking Drilling Vessel With Stowable MastAbandonedMay 19, 11Nov 22, 12[B63B]
2011/0247,827 Dual Drilling Activity Drilling ShipAbandonedApr 07, 10Oct 13, 11[E21B]
2011/0127,040 ASSEMBLY AND METHOD FOR SUBSEA WELL DRILLING AND INTERVENTIONAbandonedDec 02, 10Jun 02, 11[E21B]
2010/0098,498 Anchor system for offshore dynamically positioned drilling platformAbandonedOct 16, 08Apr 22, 10[E02D]
2006/0191,716 Well drilling and production using a surface blowout preventerAbandonedApr 13, 06Aug 31, 06[E21B]

Top Inventors for This Owner

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