Inventor · disambiguated record

Rudolf Roper

Also filed as: ROEPER RUDOLF

2 granted patents·52 citations·filing 1983–1990

64Inventor score

Technology areasE21B

Files withBAKER HUGHES INC1 CHRISTENSEN INC NORTON1

Top patents by PatentIndex Score

2 records

0162US4519574AAuxiliary controlled valve disposed in a drilling stringCHRISTENSEN INC NORTON·Filed 1983·Granted May 28, 1985·36 cites·13 claims
0240US5156222ADirectional drilling tool apparatus and methodBAKER HUGHES INC·Filed 1990·Granted Oct 20, 1992·16 cites·12 claims

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