Inventor · disambiguated record
David R. Hill
Also filed as: HILL DAVID R · HILL DAVID ROY
11 granted patents·3 pending applications·180 citations·filing 1987–2016
89Inventor score
Files withHILL DAVID R4ETEC SYSTEMS INC2HYTECH ENERGY LLC2BRITISH AEROSPACE DEFENCE SYST1OIL WELL AUTOMATION INC1
Top patents by PatentIndex Score
14 records- 0182US4747451ALevel sensorOIL WELL AUTOMATION INC·Filed 1987·Granted May 31, 1988·99 cites·17 claims
- 0275US10087743B2Fluid level determination apparatus and method of determining a fluid level in a hydrocarbon wellRESERVOIR MAN SERVICES LLC·Filed 2016·Granted Oct 2, 2018·2 cites·1 claims
- 0365US9127536B2Tool for use in well monitoringHILL DAVID R·Filed 2012·Granted Sep 8, 2015·3 cites·18 claims
- 0462US6085836AWell pump control using multiple sonic level detectorsFiled 1997·Granted Jul 11, 2000·43 cites·18 claims
- 0560US8281853B1Tool for use in well monitoringHILL DAVID R·Filed 2008·Granted Oct 9, 2012·8 cites·10 claims
- 0646USD524716STrolling motor mount for pleasure boatsHILL DAVID R·Filed 2005·Granted Jul 11, 2006·7 cites·1 claims
- 0740US7371287B2Substrate handling systemPERKINELMER INC·Filed 2004·Granted May 13, 2008·0 cites·27 claims
- 0838US5900844AWide bandwidth antenna arraysBRITISH AEROSPACE DEFENCE SYST·Filed 1998·Granted May 4, 1999·13 cites·20 claims
- 0934US2006133635A1Apparatus for the measuring of fluid levels and pumping of the sameHILL DAVID R·Filed 2004·Application pending·0 cites
- 1034US2014262245A1Fluid Level Determination Apparatus and Method of Determining a Fluid Level in a Hydrocarbon WellHYTECH ENERGY LLC·Filed 2013·Application pending·0 cites
- 1133US2002096323A1Measuring of fluid level in a wellFiled 2001·Application pending·0 cites
- 1229US6315450B1Diaphragm preload air bearingETEC SYSTEMS INC·Filed 1999·Granted Nov 13, 2001·2 cites·23 claims
- 1328US5835198AArticulated platform mechanism for laser pattern generation on a workpieceETEC SYSTEMS INC·Filed 1997·Granted Nov 10, 1998·3 cites·14 claims
- 1427US8353339B2Apparatus for the measuring of fluid levels and pumping of the sameHYTECH ENERGY LLC·Filed 2004·Granted Jan 15, 2013·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →