Assignee
PURCELL JOSEPH
IE·3 granted patents·1 pending application·3 citations·filing 2003–2011
Technology mixE21B4
Top patents by PatentIndex Score
4 records- 0163US8985245B2Drill bit assembly for fluid-operated percussion drill toolsPURCELL JOSEPH·Filed 2010·Granted Mar 24, 2015·3 cites·14 claims
- 0239US9045945B2Attachment for percussion drill toolsPURCELL JOSEPH·Filed 2011·Granted Jun 2, 2015·0 cites·19 claims
- 0337US9103165B2Down-the-hole hammerPURCELL JOSEPH·Filed 2011·Granted Aug 11, 2015·0 cites·18 claims
- 0431US2006000646A1Down-the hole hammerPURCELL JOSEPH·Filed 2003·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →