Assignee
BUCHANAN STEVEN E
US·4 granted patents·31 citations·filing 2009–2011
Technology mixE21B4
Top patents by PatentIndex Score
4 records- 0180US8550184B2Formation coring apparatus and methodsBUCHANAN STEVEN E·Filed 2010·Granted Oct 8, 2013·8 cites·14 claims
- 0278US8210284B2Coring apparatus and methods to use the sameBUCHANAN STEVEN E·Filed 2009·Granted Jul 3, 2012·14 cites·6 claims
- 0374US8292004B2Downhole marking apparatus and methodsBUCHANAN STEVEN E·Filed 2010·Granted Oct 23, 2012·7 cites·20 claims
- 0467US8752652B2Coring apparatus and methods to use the sameBUCHANAN STEVEN E·Filed 2011·Granted Jun 17, 2014·2 cites·25 claims
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