Assignee
OIL STATES ENERGY SERVICES INC
US·4 granted patents·1 pending application·235 citations·filing 2003–2006
Top patents by PatentIndex Score
5 records- 0194US7125055B2Metal ring gasket for a threaded unionOIL STATES ENERGY SERVICES INC·Filed 2003·Granted Oct 24, 2006·62 cites·23 claims
- 0292US7159652B2Drilling flange and independent screwed wellhead with metal-to-metal seal and method of useOIL STATES ENERGY SERVICES INC·Filed 2003·Granted Jan 9, 2007·84 cites·26 claims
- 0385US7159663B2Hybrid wellhead system and method of useOIL STATES ENERGY SERVICES INC·Filed 2004·Granted Jan 9, 2007·73 cites·28 claims
- 0454US7168495B2Casing-engaging well tree isolation tool and method of useOIL STATES ENERGY SERVICES INC·Filed 2004·Granted Jan 30, 2007·16 cites·26 claims
- 0538US2007227742A1Casing transition nipple and method of casing a well to facilitate well completion, re-completion and workoverOIL STATES ENERGY SERVICES INC·Filed 2006·Application pending·0 cites
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