Inventor · disambiguated record
Curtis E. Leitko, Jr.
Also filed as: LEITKO CURTIS · LEITKO CURTIS E · LEITKO JR CURTIS E
12 granted patents·608 citations·filing 1987–2017
93Inventor score
Top patents by PatentIndex Score
12 records- 0195US5467083AWireless downhole electromagnetic data transmission system and methodELECTRIC POWER RES INST·Filed 1993·Granted Nov 14, 1995·239 cites·41 claims
- 0291US10677006B2Vibration assembly and methodRIVAL DOWNHOLE TOOLS LC·Filed 2017·Granted Jun 9, 2020·9 cites·16 claims
- 0389US4834193AEarth boring apparatus and method with control valveGAS RES INST·Filed 1987·Granted May 30, 1989·96 cites·31 claims
- 0484US5462077AApparatus and method for shutting off fluid flow in a pipe mainBROOKLYN UNION GAS CO·Filed 1994·Granted Oct 31, 1995·44 cites·34 claims
- 0580US4991668AControlled directional drilling system and methodMAURER ENG·Filed 1989·Granted Feb 12, 1991·60 cites·38 claims
- 0668US5624206AApparatus and method for supporting pipe main repair tools in an excavationBROOKLYN UNION GAS CO·Filed 1995·Granted Apr 29, 1997·28 cites·19 claims
- 0767US6457538B1Advanced coring apparatus and methodMAURER ENG·Filed 2001·Granted Oct 1, 2002·35 cites·25 claims
- 0864US4880065AAir motor operated rotary earth drilling toolGAS RES INST·Filed 1988·Granted Nov 14, 1989·35 cites·29 claims
- 0956US9546518B2Power section and transmission of a downhole drilling motorAXON EP INC·Filed 2015·Granted Jan 17, 2017·1 cites·6 claims
- 1054US6009960ACoring toolDIAMOND PRODUCTS INTERNATIONAL·Filed 1998·Granted Jan 4, 2000·41 cites·27 claims
- 1149US4789032AOrienting and circulating subREHM WILLIAM A·Filed 1987·Granted Dec 6, 1988·20 cites·24 claims
- 1231US9915097B2Bearing section of a downhole drilling motorAXON EP INC·Filed 2015·Granted Mar 13, 2018·0 cites·18 claims
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