Assignee
DUYVESTEYN WILLEM P C
US·11 granted patents·7 pending applications·105 citations·filing 1991–2012
Top patents by PatentIndex Score
18 records- 0191US5176802ATreatment of copper sulfide concentratesDUYVESTEYN WILLEM P C·Filed 1991·Granted Jan 5, 1993·75 cites·18 claims
- 0287US8529687B2Oxidation of asphaltenesDUYVESTEYN WILLEM P C·Filed 2010·Granted Sep 10, 2013·6 cites·23 claims
- 0386US8449763B2Nozzle reactor and method of useDUYVESTEYN WILLEM P C·Filed 2010·Granted May 28, 2013·6 cites·10 claims
- 0481US8257580B2Dry, stackable tailings and methods for producing the sameDUYVESTEYN WILLEM P C·Filed 2009·Granted Sep 4, 2012·8 cites·39 claims
- 0574US8658029B2Dry, stackable tailings and methods for producing the sameDUYVESTEYN WILLEM P C·Filed 2012·Granted Feb 25, 2014·2 cites·13 claims
- 0671US8101067B2Methods for obtaining bitumen from bituminous materialsDUYVESTEYN WILLEM P C·Filed 2009·Granted Jan 24, 2012·4 cites·30 claims
- 0770US8435402B2Nozzle reactor and method of useDUYVESTEYN WILLEM P C·Filed 2010·Granted May 7, 2013·2 cites·25 claims
- 0862US8877044B2Methods for extracting bitumen from bituminous materialDUYVESTEYN WILLEM P C·Filed 2010·Granted Nov 4, 2014·1 cites·22 claims
- 0960US8663462B2Methods for obtaining bitumen from bituminous materialsDUYVESTEYN WILLEM P C·Filed 2009·Granted Mar 4, 2014·1 cites·34 claims
- 1054US8679325B2Processing asphaltene-containing tailingsDUYVESTEYN WILLEM P C·Filed 2009·Granted Mar 25, 2014·0 cites·7 claims
- 1151US8864982B2Methods for obtaining bitumen from bituminous materialsDUYVESTEYN WILLEM P C·Filed 2009·Granted Oct 21, 2014·0 cites·28 claims
- 1251US2011017642A1System and method for converting material comprising bitumen into light hydrocarbon liquid productDUYVESTEYN WILLEM P C·Filed 2009·Application pending·0 cites
- 1344US2012263637A1System and Method For Recovering Boron Values From Plant TailingsDUYVESTEYN WILLEM P C·Filed 2011·Application pending·0 cites
- 1442US2012151834A1Methods of Upgrading Asphaltene CompositionsDUYVESTEYN WILLEM P C·Filed 2011·Application pending·0 cites
- 1542US2011298270A1In situ ore leaching using freeze barriersDUYVESTEYN WILLEM P C·Filed 2010·Application pending·0 cites
- 1641US2012204680A1System and Method for Recovery of Nickel Values From Nickel-Containing OresDUYVESTEYN WILLEM P C·Filed 2011·Application pending·0 cites
- 1741US2012207656A1System and Method for Recovery of Scandium Values From Scandium-Containing OresDUYVESTEYN WILLEM P C·Filed 2011·Application pending·0 cites
- 1840US2012055850A1Low carbon dioxide footprint process for coal liquefactionDUYVESTEYN WILLEM P C·Filed 2010·Application pending·0 cites
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