Assignee

PRINGLE RONALD E

US·3 granted patents·78 citations·filing 1990–2009

Technology mixE21B3

Top patents by PatentIndex Score

3 records

0176US8316944B2System for pulse-injecting fluid into a boreholePRINGLE RONALD E·Filed 2009·Granted Nov 27, 2012·19 cites·12 claims
0273US4986357AWell tool having a variable area hydraulic actuatorPRINGLE RONALD E·Filed 1990·Granted Jan 22, 1991·54 cites·14 claims
0359US7387164B2Method and apparatus for selective injection or flow control with through-tubing operation capacityPRINGLE RONALD E·Filed 2005·Granted Jun 17, 2008·5 cites·7 claims

Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →