Inventor · disambiguated record

Richard Hefelfinger

Also filed as: STUDEBAKER IRVING G

1 granted patent·10 citations·filing 1978–1978

32Inventor score

Technology areasE21B

Files withOCCIDENTAL OIL SHALE INC1

Top patents by PatentIndex Score

1 record

0139US4192553AMethod for attenuating seismic shock from detonating explosive in an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Mar 11, 1980·10 cites·17 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →