Inventor · disambiguated record
Nicholas James Welham
Also filed as: WELHAM NICHOLAS J · WELHAM NICHOLAS JAMES
8 granted patents·1 pending application·17 citations·filing 2008–2016
79Inventor score
Files withSUTCLIFFE MATTHEW LESLIE3METALEACH LTD2WELHAM NICHOLAS JAMES2JOHNSTON GARRY MERVYN1WELHAM NICHOLAS J1
Top patents by PatentIndex Score
9 records- 0184US8388729B2Method for ammoniacal leachingWELHAM NICHOLAS J·Filed 2008·Granted Mar 5, 2013·9 cites·15 claims
- 0272US9057119B2Method of oxidative leaching of molybdenum—rhenium sulfide ores and/or concentratesSUTCLIFFE MATTHEW LESLIE·Filed 2011·Granted Jun 16, 2015·2 cites·8 claims
- 0371US8323596B2Method for extracting zinc from aqueous ammoniacal solutionsJOHNSTON GARRY MERVYN·Filed 2009·Granted Dec 4, 2012·3 cites·22 claims
- 0470US9771631B2Method of oxidative leaching of sulfide ores and/or concentratesWELHAM NICHOLAS JAMES·Filed 2010·Granted Sep 26, 2017·2 cites·20 claims
- 0565US8486355B2Method for leaching cobalt from oxidised cobalt oresSUTCLIFFE MATTHEW LESLIE·Filed 2010·Granted Jul 16, 2013·1 cites·20 claims
- 0644US10590512B2Method for ammoniacal leaching of copper from oxidised copper oresMETALEACH LTD·Filed 2015·Granted Mar 17, 2020·0 cites·15 claims
- 0742US8871001B2Method for leaching zinc from a zinc oreSUTCLIFFE MATTHEW LESLIE·Filed 2010·Granted Oct 28, 2014·0 cites·15 claims
- 0839US9011574B2Method for leaching of copper and molybdenumWELHAM NICHOLAS JAMES·Filed 2011·Granted Apr 21, 2015·0 cites·19 claims
- 0930US2018237886A1Method for recovering zinc from solutionMETALEACH LTD·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →