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HANNA MINING CO

Overview
  • Total Patents
    106
About

HANNA MINING CO has a total of 106 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are NEWMONT GOLD CO, NEWMONT USA LTD and CHRISTENSEN NIELS C.

Patent filings per year

Chart showing HANNA MINING COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zambrano Adolfo R 16
#2 English Alan 7
#3 Dor Abraham A 7
#4 Jardine Colin D 6
#5 Hebb Stephen 6
#6 Coles Rodney H 6
#7 Kempa Joseph E 6
#8 Bunge Fred H 5
#9 Chong Sooi 5
#10 Kaczynski Donald J 4

Latest patents

Publication Filing date Title
WO9742262A1 Composition and process for high load coloring of plasticized resins
EP0875022A1 Composition for the manufacture of flexographic printing plates
US5851731A Composition for the manufacture of flexographic printing plates
US5686515A Colored polyethylene terephthalate composition and process of its manufacture
IT8349553D0 Silicon metal upgrading for high purity applications
FR2556333A1 Process for purifying silicon for applications requiring high purity
DE3343406A1 Method for purifying silicon
ZA8308853B Silicon metal upgrading for high purity applications
CA1222125A Silicon metal upgrading for high purity applications
US4478803A Dry scrubbing of SO2 from mixtures
US4430056A Pressure actuated seal for travelling grate
US4406417A Mill liner for dry autogenous mills
US4395315A Recovery of nickel from waste materials
CA1177253A Elutriation desliming of silicious iron ore
US4292281A Selective leaching of chloride from copper oxide minerals
WO8102396A1 Mill liner for dry autogenous mills
US4323199A Mill liner for dry autogenous mills
US4298379A Production of high purity and high surface area magnesium oxide
DE3000040A1 Recovery of nickel from waste material - esp. spent catalysts, by removing organic material, leaching with acid and precipitating iron and aluminium from the acid soln.
US4214983A Recovery of copper from copper oxide minerals