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IRON CARBIDE HOLDINGS LTD

Overview
  • Total Patents
    55
About

IRON CARBIDE HOLDINGS LTD has a total of 55 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, Australia and Brazil. Its main competitors in its focus markets materials and metallurgy, environmental technology and chemical engineering are MIDREX DIRECT REDUCTION CORP, TAKEGAMI YOSHINOBU and ZHUO RUNSHENG.

Patent filings per year

Chart showing IRON CARBIDE HOLDINGS LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stephens Frank A 46
#2 Stephens Frank M Jr 33
#3 Hager John P 33
#4 Hogsett Robert F 14
#5 Stephens Jr Frank M 12
#6 Swanson Arden W 5
#7 Geiger Gordon H 2
#8 Stephens Jun Frank M 2
#9 Stevens James E 2
#10 Stephens Frank M 1

Latest patents

Publication Filing date Title
AU1860199A Process for the production of iron carbide from iron oxide using external sources of carbon monoxide
US5810906A Method for preheating feed materials for the production of iron carbide
US5804156A Iron carbide process
ZA9604084B Process for converting iron oxide to iron carbide employing internally generated carbon oxide as the carbiding agent
AU4574396A Iron carbide process
US5733357A Process for converting iron oxide to iron carbide employing internally generated carbon oxide as the carbiding agent
TT8295B Two step process for the production of iron carbide from iron oxide
US5690717A Iron carbide process
US5869018A Two step process for the production of iron carbide from iron oxide
CA2087602A1 Method for controlling the conversion of iron-containing reactor feed into iron carbide
US5118479A Process for using fluidized bed reactor
US5137566A Process for preheating iron-containing reactor feed prior to being treated in a fluidized bed reactor
US5073194A Process for controlling the product quality in the conversion of reactor feed into iron carbide