Inventor · disambiguated record
Mark C. Ehlert
Also filed as: EHLERT MARK · EHLERT MARK C · EHLERT MARK J
4 granted patents·1 pending application·95 citations·filing 1985–2003
79Inventor score
Files withHALLIBURTON CO4
Top patents by PatentIndex Score
5 records- 0175US4990076APressure control apparatus and methodHALLIBURTON CO·Filed 1989·Granted Feb 5, 1991·34 cites·19 claims
- 0265US4622846AConsistency and static gel strength measuring device and methodHALLIBURTON CO·Filed 1985·Granted Nov 18, 1986·26 cites·20 claims
- 0360US4829811AFluid testing apparatus and methodHALLIBURTON CO·Filed 1988·Granted May 16, 1989·22 cites·6 claims
- 0447US4917349AValve, and set point pressure controller utilizing the sameHALLIBURTON CO·Filed 1989·Granted Apr 17, 1990·13 cites·8 claims
- 0536US2005138139A1System and method for distribution and tracking of digital contentFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →