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FREEPORT MINERALS CO

Overview
  • Total Patents
    167
About

FREEPORT MINERALS CO has a total of 167 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are HALOMET AG, DRINKARD METALOX INC and NORILSK NICKEL HARJAVALTA OY.

Patent filings per year

Chart showing FREEPORT MINERALS COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wiewiorowski Tadeusz K 15
#2 Miller David J 12
#3 Chamberlain Donald L 11
#4 Wiewiorowski Tadeusz Karol 9
#5 Touro Freddie J 9
#6 Sweeney Robert J 9
#7 Miller David James 7
#8 Touro Freddie Joseph 5
#9 Wiewiorowski T 5
#10 Astley Vivian C 5

Latest patents

Publication Filing date Title
JO1555B1 Tilting pan filters and cam therefor
PH26607A Tilting fax filters
CA1322658C Sulfide treatment to inhibit mercury adsorption onto activated carbon in carbon-in-pulp gold recovery circuits
US4710366A Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum
US4723998A Recovery of gold from carbonaceous ores by simultaneous chlorine leach and ion exchange resin adsorption process
US4721566A Tilting pan filters and cam therefor
US4738718A Method for the recovery of gold using autoclaving
US4675107A Tilting pan filters
US4671833A Process for applying a heat-shrinkable material over sulfur well piping
US4605537A Sulfide as a hypochlorite kill agent
US4577804A Wet grinding phosphate rock in an acidic slurry
US4487750A Stabilization of wet process phosphoric acid
PH17721A Simultaneous leaching and cementation of precious
ZA8207167B Simultaneous leaching and cementation of precious metals
CA1198080A Simultaneous leaching and electrodeposition of precious metals
AU8873082A Leaching and cementation of precious metals
AU6742681A Process for the recovery of gold from carbonaceous ores
US4345785A Dielectric pipe coupling for use in high temperature, corrosive environments
US4289532A Process for the recovery of gold from carbonaceous ores
US4241953A Sulfur mine bleedwater reuse system