Inventor · Wheat Ridge, CO, US

Wayne W. Hazen

52Patents
12h-index
41Co-inventors
84Inventor score

Filing activity: May 31, 1977 → Dec 29, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US6451088B1 Method for improving metals recovery using high temperature leaching Emerging Cross-Sectional Technologies 22 Expired
US6149883A Pressure oxidation process for the production of molybdenum trioxide from molybdenite Chemistry; Metallurgy 19 Expired
US6626979B2 Method for improving metals recovery using high temperature pressure leaching Emerging Cross-Sectional Technologies 15 Expired
US7341700B2 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching Emerging Cross-Sectional Technologies 15 Expired
US5078786A Process for recovering metal values from jarosite solids Emerging Cross-Sectional Technologies 14 Expired
US8420048B1 System and method for parallel solution extraction of one or more metal values from metal-bearing materials Emerging Cross-Sectional Technologies 14 Active
US6972107B2 System for direct electrowinning of copper Emerging Cross-Sectional Technologies 14 Expired
US6676909B2 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching Emerging Cross-Sectional Technologies 14 Expired
US8003064B2 Controlled copper leach recovery circuit Emerging Cross-Sectional Technologies 13 Active
US6451089B1 Process for direct electrowinning of copper Emerging Cross-Sectional Technologies 13 Expired
US6680034B2 Method for recovering metal values from metal-containing materials using high temperature pressure leaching Emerging Cross-Sectional Technologies 12 Expired
US6663689B2 Process for direct electrowinning of copper Emerging Cross-Sectional Technologies 12 Expired
US7125436B2 Method for improving metals recovery using high temperature pressure leaching Emerging Cross-Sectional Technologies 11 Expired
US6893482B2 Method for improving metals recovery using high temperature pressure leaching Emerging Cross-Sectional Technologies 11 Expired
US8372360B2 Controlled metal leach recovery circuit Chemistry; Metallurgy 9 Active
US8372361B2 Copper recovery circuit Emerging Cross-Sectional Technologies 9 Active
US6497745B2 Method for processing elemental sulfur-bearing materials using high temperature pressure leaching Emerging Cross-Sectional Technologies 9 Expired
US7485216B2 Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction Emerging Cross-Sectional Technologies 9 Active
US7517384B2 Method for improving metals recovery using high temperature pressure leaching Emerging Cross-Sectional Technologies 9 Active
US7462272B2 Process for multiple stage direct electrowinning of copper Emerging Cross-Sectional Technologies 7 Active
US9169533B2 System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials Emerging Cross-Sectional Technologies 7 Active
US7476308B2 Process for multiple stage direct electrowinning of copper Emerging Cross-Sectional Technologies 7 Active
US7736488B2 Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction Emerging Cross-Sectional Technologies 6 Active
US9447483B2 System and method for parallel solution extraction of one or more metal values from metal-bearing materials Emerging Cross-Sectional Technologies 6 Active
US9023313B2 System and method for parallel solution extraction of one or more metal values from metal-bearing materials Emerging Cross-Sectional Technologies 6 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.