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INDREF OY

Overview
  • Total Patents
    32
About

INDREF OY has a total of 32 patent applications. Its first patent ever was published in 1992. It filed its patents most often in Finland, EPO (European Patent Office) and China. Its main competitors in its focus markets materials and metallurgy and machines are CONTINUA INT, FERRIC ENGINEERING COMPANY and ETUDES DE CENTRIFUGATION.

Patent filings per year

Chart showing INDREF OYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Materials and metallurgy
#2 Machines

Focus technologies

# Technology
#1 Casting metal
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Silfvenius Mikael 25
#2 Helanto Erkki 15
#3 Silfvenius Karl Mikael 3
#4 Erkk Helanto 1

Latest patents

Publication Filing date Title
EP2213394A1 Nozzle brick with a seal
EP2213393A1 Repairable slide shutter plate and/or bottom nozzle brick and methods for the manufacture and repair of a repairable slide shutter plate and/or bottom nozzle brick
EP2011591A2 Apparatus for dispensing molten metal and method of manufacturing such an apparatus
FI20060649A0 Metal melt drainage tube
FI20040589A0 Closure for the mold opening in a metal casting vessel
FI20040588A0 Installing the outflow channel shutter for the metal casting vessel
FI20002130A0 Valve and its manufacturing method
FI980141A0 Tillslutare Foer utloppskanalen hos ett metallgjutningskaerl
FI923981A0 Casting nozzle and methods for its manufacture and renewal
FI923496A0 Ett icke-tilltaeppbart gaspolningstegel och foerfarande foer dess framstaellning.