Inventor · disambiguated record
Vernon E. Koval
Also filed as: KOVAL VERNON · KOVAL VERNON E
5 granted patents·235 citations·filing 1981–2002
85Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP2SCHLUMBERGER TECHNOLOGY COMPAN1SPERRY SUN INC1TELECO OILFIELD SERVICES INC1
Top patents by PatentIndex Score
5 records- 0189US6604921B1Optimized liner thickness for positive displacement drilling motorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Aug 12, 2003·39 cites·15 claims
- 0287US6241494B1Non-elastomeric stator and downhole drilling motors incorporating sameSCHLUMBERGER TECHNOLOGY COMPAN·Filed 1998·Granted Jun 5, 2001·68 cites·7 claims
- 0377US4399877AContinuous borehole telemetry system and methodSPERRY SUN INC·Filed 1981·Granted Aug 23, 1983·50 cites·22 claims
- 0476US4877092ANear bit offset stabilizerTELECO OILFIELD SERVICES INC·Filed 1988·Granted Oct 31, 1989·55 cites·43 claims
- 0544US6019180AMethod for evaluating the power output of a drilling motor under downhole conditionsSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Feb 1, 2000·23 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →