Inventor · disambiguated record

Steven Edward Hackman

Also filed as: HACKMAN STEVEN EDWARD

1 granted patent·6 citations·filing 2010–2010

27Inventor score

Technology areasE21B

Files withMARCHAND NICHOLAS RYAN1

Top patents by PatentIndex Score

1 record

0169US9534638B2Retention means for a seal boot used in a universal joint in a downhole motor driveshaft assemblyMARCHAND NICHOLAS RYAN·Filed 2010·Granted Jan 3, 2017·6 cites·25 claims

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