Inventor · disambiguated record
Michael J. Levchak
Also filed as: LEVCHAK MICHAEL J · LEVCHAK MICHAEL JOHN
6 granted patents·39 citations·filing 1993–2017
76Inventor score
Top patents by PatentIndex Score
6 records- 0185US10027013B2Collar-mountable bobbin antenna having coil and ferrite slotsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jul 17, 2018·4 cites·20 claims
- 0271US10908313B2Antenna designs for wellbore logging toolsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Feb 2, 2021·1 cites·20 claims
- 0370US10167715B2Buildup and encapsulation of antenna section of downhole toolHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jan 1, 2019·2 cites·20 claims
- 0467US5321719AThermogravimetric apparatusTA INSTR INC·Filed 1993·Granted Jun 14, 1994·32 cites·34 claims
- 0546US11143018B2Environmental compensation system for downhole oilwell toolsHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Oct 12, 2021·0 cites·17 claims
- 0643US11111775B2Wear sleeveHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Sep 7, 2021·0 cites·23 claims
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