Inventor · disambiguated record

Charles C. Jonhson

Also filed as: JONHSON CHARLES C

1 granted patent·25 citations·filing 2011–2011

45Inventor score

Technology areasE21B

Files withMAILAND JASON C1

Top patents by PatentIndex Score

1 record

0192US8555960B2Pressure actuated ported sub for subterranean cement completionsMAILAND JASON C·Filed 2011·Granted Oct 15, 2013·25 cites·22 claims

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