Inventor · disambiguated record

Roger C. Leaf

Also filed as: LEAF ROGER C

2 granted patents·49 citations·filing 1992–1993

64Inventor score

Technology areasE21B

Files withSLIM DRIL INTERNATIONAL INC1 SLIMDRIL INTERNATIONAL INC1

Top patents by PatentIndex Score

2 records

0145US5368109AApparatus for arcuate drillingSLIM DRIL INTERNATIONAL INC·Filed 1993·Granted Nov 29, 1994·27 cites·24 claims
0242US5320179ASteering sub for flexible drillingSLIMDRIL INTERNATIONAL INC·Filed 1992·Granted Jun 14, 1994·22 cites·26 claims

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Roger C. Leaf — Patent Inventor | PatentIndex