Inventor · disambiguated record

Robert F. Hughes

Also filed as: HUGHES ROBERT F

1 granted patent·3 citations·filing 1977–1977

21Inventor score

Technology areasE21B

Files withOCCIDENTAL OIL SHALE INC1

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1 record

0124US4133380AEstablishing a combustion zone below a sill pillar in an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Jan 9, 1979·3 cites·23 claims

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