Inventor · disambiguated record

Patrick Francis Campbell

Also filed as: CAMPBELL PATRICK F · CAMPBELL PATRICK FRANCIS

2 granted patents·101 citations·filing 2003–2017

65Inventor score

Technology areasE21B

Files withCAJUN SERVICES UNLIMITED LLC1 HALLIBURTON ENERGY SERV INC1

Top patents by PatentIndex Score

2 records

0186US10858905B2Jettisonable ball sealCAJUN SERVICES UNLIMITED LLC·Filed 2017·Granted Dec 8, 2020·5 cites·5 claims
0284US6997263B2Multi zone isolation tool having fluid loss prevention capability and method for use of sameHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Feb 14, 2006·96 cites·43 claims

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Patrick Francis Campbell — Patent Inventor | PatentIndex