Assignee
RUNIA DOUWE JOHANNES
NL·3 granted patents·1 pending application·11 citations·filing 2008–2010
Technology mixE21B4
Top patents by PatentIndex Score
4 records- 0163US8439131B2Drill bit assembly and method of performing an operation in a wellboreRUNIA DOUWE JOHANNES·Filed 2008·Granted May 14, 2013·8 cites·8 claims
- 0249US9074436B2Methods for installing sensors in a boreholeRUNIA DOUWE JOHANNES·Filed 2009·Granted Jul 7, 2015·2 cites·16 claims
- 0346US8668031B2Drill bit and method for inserting, expanding, collapsing, and retrieving drill bitRUNIA DOUWE JOHANNES·Filed 2009·Granted Mar 11, 2014·1 cites·15 claims
- 0437US2012018219A1Method and steering assembly for drilling a borehole in an earth formationRUNIA DOUWE JOHANNES·Filed 2010·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →