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JONES & LAUGHLIN STEEL INC

Overview
  • Total Patents
    15
About

JONES & LAUGHLIN STEEL INC has a total of 15 patent applications. Its first patent ever was published in 1981. It filed its patents most often in United States, Canada and Argentina. Its main competitors in its focus markets materials and metallurgy and environmental technology are CUSTODIS ALPHONS, WIBERG FRANS MARTIN and ZDANOVSKIJ METALL I.

Patent filings in countries

World map showing JONES & LAUGHLIN STEEL INCs patent filings in countries

Patent filings per year

Chart showing JONES & LAUGHLIN STEEL INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ernst Donald M 9
#2 Koros Peter J 3
#3 Petrushka Robert G 1
#4 Ernest Donald M 1
#5 Ernst D M 1

Latest patents

Publication Filing date Title
CA1188521A Desulfurizing process
US4354668A Method and apparatus for determining completion of a cast in blast furnace casthouse pollution suppression system
US4345940A Desulfurizing process
US4341554A Process for desulfurizing steel