Inventor · disambiguated record
Mark D. Zitka
Also filed as: ZITKA MARK D
3 granted patents·1 pending application·148 citations·filing 1989–2004
77Inventor score
Top patents by PatentIndex Score
4 records- 0194US6881045B2Progressive cavity pump/motorROBBINS & MYERS ENERGY SYS LP·Filed 2003·Granted Apr 19, 2005·59 cites·20 claims
- 0282US4982801AFlexible coupling for downhole motorTELECO OILFIELD SERVICES INC·Filed 1989·Granted Jan 8, 1991·33 cites·18 claims
- 0371US5074681ADownhole motor and bearing assemblyTELECO OILFIELD SERVICES INC·Filed 1991·Granted Dec 24, 1991·56 cites·30 claims
- 0439US2005118040A1Progressive cavity pump/motorFiled 2004·Application pending·0 cites
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