Inventor · disambiguated record
David Dreisinger
Also filed as: DREISINGER DAVID · DREISINGER DAVID B · DREISINGER DAVID BRUCE
29 granted patents·10 pending applications·492 citations·filing 1993–2023
96Inventor score
Files withNEGATIVE EMISSIONS MAT INC4UNIV BRITISH COLUMBIA4SEABRIDGE GOLD INC3BARRICK GOLD CORP2BASF SE2
Top patents by PatentIndex Score
39 records- 0193US6632264B2Gold recovery from thiosulfate leachingUNIV BRITISH COLUMBIA·Filed 2001·Granted Oct 14, 2003·36 cites·34 claims
- 0293US5785736AGold recovery from refractory carbonaceous ores by pressure oxidation, thiosulfate leaching and resin-in-pulp adsorptionBARRICK GOLD CORP·Filed 1996·Granted Jul 28, 1998·86 cites·32 claims
- 0390US5536297AGold recovery from refractory carbonaceous ores by pressure oxidation and thiosulfate leachingBARRICK GOLD CORP·Filed 1995·Granted Jul 16, 1996·94 cites·22 claims
- 0484US5622615AProcess for electrowinning of copper matteUNIV BRITISH COLUMBIA·Filed 1996·Granted Apr 22, 1997·48 cites·28 claims
- 0583US8741238B2Metathetic copper concentrate enrichmentPOLYMET MINING CORP·Filed 2013·Granted Jun 3, 2014·4 cites·9 claims
- 0682US6537440B1Processing copper sulphide oresWESTERN METALS COPPER LTD·Filed 1999·Granted Mar 25, 2003·36 cites·28 claims
- 0782US6503293B1Process for the extraction of copperFiled 2000·Granted Jan 7, 2003·18 cites·9 claims
- 0880US11370677B2Rapid reduction of aqueous selenate with chromous ionsSEABRIDGE GOLD INC·Filed 2020·Granted Jun 28, 2022·2 cites·21 claims
- 0979US8585991B2Method for recovering indium, silver, gold and rare, precious and base metals from complex oxide and sulfide oresDREISINGER DAVID·Filed 2012·Granted Nov 19, 2013·6 cites·52 claims
- 1079US5366715AMethod for selectively removing antimony and bismuth from sulphuric acid solutionsUNIV BRITISH COLUMBIA·Filed 1993·Granted Nov 22, 1994·28 cites·12 claims
- 1176US6315812B1Oxidative pressure leach recovery using halide ionsINTERNAT PGM TECHNOLOGIES LTD·Filed 1999·Granted Nov 13, 2001·30 cites·41 claims
- 1274US5582737AIon exchange and regeneration process for separation and removal of iron (III) ions from aqueous sulfuric acid metal ion-containing solutionsEICHROM IND INC·Filed 1995·Granted Dec 10, 1996·45 cites·20 claims
- 1371US11634789B2Selective lithium extraction from brinesInCoR Lithium·Filed 2020·Granted Apr 25, 2023·1 cites·26 claims
- 1471US10738370B2Recovery of cesium from epithermal mineral depositsCASCADERO COPPER CORP·Filed 2017·Granted Aug 11, 2020·3 cites·28 claims
- 1571US9039806B2Recycling of solids in oxidative pressure leaching of metals using halide ionsDREISINGER DAVID B·Filed 2007·Granted May 26, 2015·3 cites·11 claims
- 1671US8361191B2Low acid leaching of nickel and cobalt from lean iron-containing nickel oresSEARCH MINERALS INC·Filed 2011·Granted Jan 29, 2013·4 cites·15 claims
- 1768US11958764B2Rapid reduction of aqueous selenate with chromous ionsSEABRIDGE GOLD INC·Filed 2022·Granted Apr 16, 2024·0 cites·16 claims
- 1868US10822253B2Anion removal from waste waterWinner Water Services·Filed 2019·Granted Nov 3, 2020·0 cites·20 claims
- 1967US7037482B2Solvent extraction of a halide from a aqueous sulphate solutionTECK COMINCO METALS LTD·Filed 2003·Granted May 2, 2006·8 cites·38 claims
- 2065US7604793B2Iron oxide precipitation from acidic iron salt solutionsMETALOX INTERNAT·Filed 2005·Granted Oct 20, 2009·4 cites·21 claims
- 2164US2024399306A1Attritive carbon dioxide capture as friable magnesium carbonate particulatesNEGATIVE EMISSIONS MAT INC·Filed 2022·Application pending·0 cites
- 2262US2023407436A1Concerted mineral carbonation and selective leaching of lateritesUNIV BRITISH COLUMBIA·Filed 2021·Application pending·0 cites
- 2362US2025303359A1Compounds and methods for safe mitigation of ocean acidification and capture of atmospheric carbon dioxideNEGATIVE EMISSIONS MAT INC·Filed 2023·Application pending·0 cites
- 2460US6200545B1Cyanide recovery by solvent extractionDREISINGER CONSULTING INC·Filed 1999·Granted Mar 13, 2001·13 cites·22 claims
- 2560US2024002973A1Integration of carbon sequestration with selective hydrometallurgical recovery of metal valuesNEGATIVE EMISSIONS MAT INC·Filed 2021·Application pending·0 cites
- 2659US10442703B2Anion removal from waste waterWinner Water Services·Filed 2017·Granted Oct 15, 2019·0 cites·19 claims
- 2759US2025282633A1Sequential hydrometalurgical recovery of metal values with sequestered carbonNEGATIVE EMISSIONS MAT INC·Filed 2023·Application pending·0 cites
- 2853US12065715B2Polymetallic nodule mineral processingLOKE MARINE MINERALS AS·Filed 2022·Granted Aug 20, 2024·0 cites·8 claims
- 2953US2012027652A1Metathetic copper concentrate enrichmentDREISINGER DAVID BRUCE·Filed 2011·Application pending·0 cites
- 3052US2024183003A1In-situ generation of thiosulphate lixiviant systems and methods for precious metal leaching and recoverySEABRIDGE GOLD INC·Filed 2022·Application pending·0 cites
- 3150US9322105B2Recovering lead from a lead material including lead sulfideBASF SE·Filed 2013·Granted Apr 26, 2016·0 cites·18 claims
- 3249US5948264AIon exchange and regeneration process for separation and removal of iron (III) ions from aqueous sulfuric acid metal ion-containing solutionsEICHROM IND INC·Filed 1998·Granted Sep 7, 1999·21 cites·21 claims
- 3347US9322104B2Recovering lead from a mixed oxidized materialBASF SE·Filed 2013·Granted Apr 26, 2016·0 cites·15 claims
- 3444US2011030508A1Process for Metal Seperation Using Resin-in-Pulp or Resin-in-Solution ProcessesFENIX HYDROMET AUSTRALASIA PTY LTD·Filed 2009·Application pending·0 cites
- 3542US10273562B2Acid leaching of rare earth mineralsSEARCH MINERALS INC·Filed 2015·Granted Apr 30, 2019·0 cites·25 claims
- 3642US7799295B2Ore leach method with aqueous sulfuric acid containing ferric ionsOZ MINERALS LTD·Filed 2004·Granted Sep 21, 2010·2 cites·22 claims
- 3740US11697600B2Vanadium extraction from disparate shale oresFIRST VANADIUM CORP·Filed 2021·Granted Jul 11, 2023·0 cites·21 claims
- 3839US2017204494A1Reduced acid leaching and resin in leach extraction from acid consuming copper oresFENIX HYDROMET AUSTRALASIA PTY LTD·Filed 2015·Application pending·0 cites
- 3933US2002152845A1Oxidative pressure leach recovery of precious metals using halide ionsFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →