Assignee
CHANG CHUNG
US·8 granted patents·18 citations·filing 2005–2012
Top patents by PatentIndex Score
8 records- 0173US7895938B2Apparatus and method for steam disinfection of liquid dispensing machineCHANG CHUNG·Filed 2005·Granted Mar 1, 2011·7 cites·13 claims
- 0272US9110166B2Acoustic imagingCHANG CHUNG·Filed 2011·Granted Aug 18, 2015·5 cites·30 claims
- 0369US10288758B2Wide bandwidth borehole dipole source for acoustic loggingCHANG CHUNG·Filed 2012·Granted May 14, 2019·3 cites·24 claims
- 0458US9869141B2Downhole tool vibration device and methodCHANG CHUNG·Filed 2012·Granted Jan 16, 2018·1 cites·23 claims
- 0558US9631476B2Variable stiffness downhole tool housingCHANG CHUNG·Filed 2012·Granted Apr 25, 2017·1 cites·18 claims
- 0647US9309927B2Rotational driveshaft coupler to facilitate a seal with static contactsCHANG CHUNG·Filed 2011·Granted Apr 12, 2016·0 cites·8 claims
- 0747US8794317B2Cased borehole tool orientation measurementCHANG CHUNG·Filed 2012·Granted Aug 5, 2014·0 cites·11 claims
- 0846US8141635B2Cased borehole tool orientation measurementCHANG CHUNG·Filed 2008·Granted Mar 27, 2012·1 cites·32 claims
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