Inventor · disambiguated record
David Hadfield
Also filed as: HADFIELD DAVID · HADFIELD DAVID A · HADFIELD DAVID ANDREW
10 granted patents·1 pending application·340 citations·filing 1976–2011
91Inventor score
Top patents by PatentIndex Score
11 records- 0187US6197095B1Subsea multiphase fluid separating system and methodFiled 1999·Granted Mar 6, 2001·130 cites·43 claims
- 0286US5302294ASeparation system employing degassing separators and hydroglyclonesCONOCO SPECIALTY PROD·Filed 1991·Granted Apr 12, 1994·121 cites·51 claims
- 0381US7766121B2Methods and apparatus for conditioning and degassing liquids and gases in suspensionCYCLOTECH LTD·Filed 2005·Granted Aug 3, 2010·9 cites·40 claims
- 0480US6767459B1Fluid processing for separating emulsionsCYCLOTECH LTD·Filed 2000·Granted Jul 27, 2004·32 cites·24 claims
- 0576USD252156SDiaphragmLUCAS INDUSTRIES LTD·Filed 1976·Granted Jun 19, 1979·16 cites·1 claims
- 0665US8728327B2Methods and apparatus for conditioning and degassing liquids and gases in suspensionHADFIELD DAVID·Filed 2010·Granted May 20, 2014·2 cites·20 claims
- 0757US5366641AHydrocyclones for oil spill cleanup with oil slug monitorCONOCO SPECIALTY PROD·Filed 1991·Granted Nov 22, 1994·14 cites·4 claims
- 0846US7401704B2Conveyor apparatusCYCLOTECH LTD·Filed 2005·Granted Jul 22, 2008·2 cites·40 claims
- 0939US6619889B1Conveyor apparatusCYCLOTECH LTD·Filed 1999·Granted Sep 16, 2003·10 cites·8 claims
- 1036US2014151274A1Hydrocyclone With Wear DetectorHADFIELD DAVID·Filed 2011·Application pending·0 cites
- 1133US5498346AHydrocyclones for oil spill cleanup having a controlled split ratioCONOCO SPECIALTY PROD·Filed 1994·Granted Mar 12, 1996·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →