Inventor · disambiguated record

Benjamin P. Nutter

Also filed as: NUTTER BENJAMIN P

2 granted patents·103 citations·filing 1975–1977

64Inventor score

Technology areasE21B

Files withSCHLUMBERGER TECHNOLOGY CORP2

Top patents by PatentIndex Score

2 records

0186US3986554APressure controlled reversing valveSCHLUMBERGER TECHNOLOGY CORP·Filed 1975·Granted Oct 19, 1976·98 cites·22 claims
0228US4141418ASafety valve hydraulically operated by telescopic drill stem movementSCHLUMBERGER TECHNOLOGY CORP·Filed 1977·Granted Feb 27, 1979·5 cites·17 claims

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Benjamin P. Nutter — Patent Inventor | PatentIndex