Inventor · disambiguated record
Houyuan Liu
Also filed as: LIU HOUYUAN
23 granted patents·4 pending applications·314 citations·filing 1991–2013
95Inventor score
Files withBHP MINERALS INT INC7BHP BILLITON SSM DEV PTY LTD6BHP BILLITON SSM TECH PTY LTD5LIU HOUYUAN5BHP BILLITON INNOVATION PTY1
Top patents by PatentIndex Score
27 records- 0197US6312500B1Heap leaching of nickel containing oreBHP MINERALS INT INC·Filed 2000·Granted Nov 6, 2001·59 cites·12 claims
- 0296US5571308AMethod for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic oreBHP MINERALS INT INC·Filed 1995·Granted Nov 5, 1996·100 cites·18 claims
- 0389US6395061B1Process for organic acid bioleaching of oreBHP MINERALS INT INC·Filed 2000·Granted May 28, 2002·23 cites·20 claims
- 0488US7585350B2Production of ferronickelBHP BILLITON SSM TECH PTY LTD·Filed 2007·Granted Sep 8, 2009·8 cites·29 claims
- 0587US7871584B2Consecutive or simultaneous leaching of nickel and cobalt containing oresBHP BILLITON SSM TECH PTY LTD·Filed 2007·Granted Jan 18, 2011·9 cites·28 claims
- 0687US7597738B2Production of ferro-nickel or nickel matte by a combined hydrometallurgical and pyrometallurgical processBHP BILLITON SSM TECH PTY LTD·Filed 2007·Granted Oct 6, 2009·9 cites·31 claims
- 0779US7935171B2Production of metallic nickel with low iron contentBHP BILLITON SSM DEV PTY LTD·Filed 2007·Granted May 3, 2011·4 cites·19 claims
- 0879US7416711B2Atmospheric pressure leach process for lateritic nickel oreQNI TECHNOLOGY PTY LTD·Filed 2003·Granted Aug 26, 2008·18 cites·24 claims
- 0979US5304359ADissolution of platinum group metals from materials containing said metalsBHP MINERALS INT INC·Filed 1992·Granted Apr 19, 1994·25 cites·10 claims
- 1077US7559972B2Process for enhanced acid leaching of laterite oresBHP BILLITON SSM TECH PTY LTD·Filed 2007·Granted Jul 14, 2009·5 cites·18 claims
- 1172US8366801B2Atmospheric acid leach process for lateritesBHP BILLITON SSM DEV PTY LTD·Filed 2008·Granted Feb 5, 2013·4 cites·21 claims
- 1272US5292490ARecovery platinum group metals from oxides oresBHP MINERALS INT INC·Filed 1992·Granted Mar 8, 1994·15 cites·11 claims
- 1367US8268039B2Process for atmospheric leaching of laterite ores using hypersaline leach solutionLIU HOUYUAN·Filed 2009·Granted Sep 18, 2012·1 cites·17 claims
- 1466US9481919B2Production of high grade nickel productBHP BILLITON SSM DEV PTY LTD·Filed 2013·Granted Nov 1, 2016·2 cites·16 claims
- 1557US8758479B2Nickel recovery from a high ferrous content laterite oreCACERES HERNANDEZ OMAR YESID·Filed 2008·Granted Jun 24, 2014·1 cites·14 claims
- 1657US7988938B2Selectively leaching cobalt from lateritic oresBHP BILLITON SSM DEV PTY LTD·Filed 2008·Granted Aug 2, 2011·0 cites·17 claims
- 1753US8454723B2Saprolite neutralisation of heap leach processLIU HOUYUAN·Filed 2009·Granted Jun 4, 2013·0 cites·18 claims
- 1852US5328035ALithium metatungstateBHP MINERALS INT INC·Filed 1992·Granted Jul 12, 1994·14 cites·7 claims
- 1950US7758669B2Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing materialBHP BILLITON SSM TECH PTY LTD·Filed 2004·Granted Jul 20, 2010·2 cites·19 claims
- 2048US2011150729A1Process for Heap Leaching of Nickeliferous Oxidic OresLIU HOUYUAN·Filed 2009·Application pending·0 cites
- 2146US5236491ABoron recovery from geothermal brinesBHP MINERALS INT INC·Filed 1992·Granted Aug 17, 1993·8 cites·23 claims
- 2244US2008138263A1Process for Heap Leaching of Nickeliferous Oxidic OresLIU HOUYUAN·Filed 2007·Application pending·0 cites
- 2344US2008271571A1Process for Leaching Lateritic Ore at Atmospheric PressureLIU HOUYUAN·Filed 2008·Application pending·0 cites
- 2440US2010282024A1Limonite and Saprolite Heap Leach ProcessBHP BILLITON SSM DEV PTY LTD·Filed 2008·Application pending·0 cites
- 2539US9920397B2Removal of ferric iron as hematite at atmospheric pressureBHP BILLITON SSM DEV PTY LTD·Filed 2013·Granted Mar 20, 2018·0 cites·20 claims
- 2637US7485268B2Production of titaniaBHP BILLITON INNOVATION PTY·Filed 2003·Granted Feb 3, 2009·0 cites·27 claims
- 2735US5178848ALithium metatungstateBHP UTAH INTERNATIONAL CORP·Filed 1991·Granted Jan 12, 1993·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →