B63J 2/02

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9862474 Ventilation apparatus of a drillshipJun 22, 11Jan 09, 18DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
9376199 Polar vessel having a derrickJun 22, 11Jun 28, 16DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
9377369 Temperature and pressure monitoring system of sealed derrick structureJun 22, 11Jun 28, 16DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
9297545 Damper structure for a sealed derrickJun 22, 11Mar 29, 16DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
9205894 Sealed derrick structure for polar vesselsJun 22, 11Dec 08, 15DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
8955596 Damping apparatus for moonpoolJun 20, 11Feb 17, 15DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., TRANSOCEAN SEDCO FOREX VENTURES LIMITED,
6712689 Cockpit vent for a power boatJul 27, 02Mar 30, 04JC VENTS, L.L.C.
4434740 Wind-scoop for small boatsMay 05, 83Mar 06, 84Not available