Patentes internacionales/Europeas - http://www.wipo.int/patentscope/search/en/

WO WO/2011/136685 - MELTING FURNACE 
WO WO/2011/135991 - VALUABLE METAL RECOVERY METHOD
WO WO/2011/134402 - METHOD FOR EXTRACTING GALLIUM FROM FLY ASH
WO WO/2011/134403 - METHOD FOR EXTRACTING GALLIUM FROM FLY ASH
WO WO/2011/137268 - METHOD FOR RECOVERING TELLURIUM FROM MODULE COMPRISING CADMIUM TELLURIDE
WO WO/2011/136556 - ADDITIVE COMPOSITION FOR METAL SINTERING
WO WO/2011/135184 - METHOD FOR RECOVERING VALUABLE METALS
EP 2382072 - METHOD FOR PROCESSING A TEXTILE FRACTION GENERATED WHEN PROCESSING USED TIRES, AND SYSTEM FOR PERFORMING THE METHOD
EP 2382158 - APPARATUS AND PROCESS FOR TREATMENT FOR IMMISCIBLE LIQUIDS
EP 2382332 - HYDROMETALLURGICAL METHOD FOR THE REUSE OF SECONDARY ZINC OXIDES RICH IN FLUORIDE AND CHLORIDE
EP 2383352 - METHOD FOR RECLAIMING IRON AND PHOSPHORUS FROM STEELMAKING SLAG