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OUTOKUMPU HARJAVALTA METALS OY

Overview
  • Total Patents
    29
About

OUTOKUMPU HARJAVALTA METALS OY has a total of 29 patent applications. Its first patent ever was published in 1992. It filed its patents most often in Australia, Germany and Finland. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are COMPANHIA MINEIRA DE METAIS, BHP BILLITON SSM DEV PTY LTD and BHP BILLITON OLYMPIC DAM CORP PTY LTD.

Patent filings in countries

World map showing OUTOKUMPU HARJAVALTA METALS OYs patent filings in countries
# Country Total Patents
#1 Australia 4
#2 Germany 4
#3 Finland 4
#4 Canada 3
#5 United States 3
#6 South Africa 3
#7 Zimbabwe 2
#8 Brazil 1
#9 China 1
#10 India 1
#11 Republic of Korea 1
#12 Norway 1
#13 Poland 1

Patent filings per year

Chart showing OUTOKUMPU HARJAVALTA METALS OYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hultholm Stig-Erik 8
#2 Salmi Veli 7
#3 Nyman Bror Goeran 7
#4 Lilja Launo 7
#5 Tuokkola Pekka 6
#6 Teperi Heikki 6
#7 Rajainmaeki Kari 4
#8 Jounela Seppo Sakari 4
#9 Makinen Tuula Sisko 3
#10 Nyman Bror Goran 2

Latest patents

Publication Filing date Title
US5779997A Method for preventing the formation of jarosite and ammonium and alkali based double salts in solvent extraction circuits connected to acidic leaching processes
FI931500A0 Methods and apparatus for increasing the efficiency of the waste heat boiler
FI922844A0 Method for utilizing sulphide, refractory nickel concentrates or similar mixtures
FI922843A0 Process for the manufacture of nickel fine stone and metallised stone
FI922842A0 Method for preventing the formation of jarosite and ammonium- and alkali-based double salts in liquid-liquid extraction of acidic leaching processes