Assignee
ASTLEFORD JOHN
2 granted patents·1 pending application·6 citations·filing 2005–2011
Top patents by PatentIndex Score
3 records- 0165US7556154B2Drill fluid screening deviceASTLEFORD JOHN·Filed 2005·Granted Jul 7, 2009·6 cites·18 claims
- 0235US7703537B2Recovery of hydrocarbonsASTLEFORD JOHN·Filed 2008·Granted Apr 27, 2010·0 cites·16 claims
- 0332US2012067831A1Apparatus for and method of recovering clean drilling fluid from fluid contaminated with entrained debrisASTLEFORD JOHN·Filed 2011·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →