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LUKENS STEEL CO

Overview
  • Total Patents
    217
About

LUKENS STEEL CO has a total of 217 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets machine tools, machines and materials and metallurgy are SUPERIOR STEEL CORP, UNA WELDING INC and HENRY JONES ERNEST.

Patent filings in countries

World map showing LUKENS STEEL COs patent filings in countries
# Country Total Patents
#1 United States 119
#2 United Kingdom 32
#3 Canada 29
#4 France 21
#5 Germany 13
#6 Switzerland 2
#7 Belgium 1

Patent filings per year

Chart showing LUKENS STEEL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Edwards Lewis W 9
#2 Watson Thomas T 8
#3 Freyberger Donald L 6
#4 Charlton Edward J 6
#5 Jensen Niels H 6
#6 Leonard Pompa 5
#7 Ma James L 5
#8 West Russell A 5
#9 Althouse Joseph G 4
#10 Petrovich Anton I 4

Latest patents

Publication Filing date Title
US4116690A Flux for use in electroslag refining process
US4129172A Mold for electroslag remelting process
US4023936A Titanium clad steel and process for making
US3974698A Molten metal sampler for electroslag refining process
US3973076A Furnace for melting highly corrosive slag
US3903658A Mobile oscillating spot grinder with pressure control means to produce a feathering effect
US3851864A Apparatus and process for suppression of noise and fumes generated by plasma-arc cutting operation
US3905804A Method of decarburization of slag in the electroslag remelting process
US3784176A Expendable work support for a burning table
US3769097A Method of removing smoke and fumes produced by flame cutting of metal plates received on a burning table
US3850086A Exhaust valve for selective removal of smoke and fume laden air
US3703600A Method of starting electroslag remelting process with molten slag
US3735477A Method of using and removing a parting compound
US3807986A Combination iron and iron oxide briquette and method of using
US3674903A Method and apparatus for reducing air infiltration into electric arc furnace during the charging and melting operation
US3701514A Burning table and exhaust system therefor
US3601885A Method of producing high strength carbon steel plate
US3658565A Parting compound containing chromium oxide manganese dioxide and a liquid inorganic carrier
US3465809A Process for casting slab type ingots
US3499757A Low alloy steel plate containing copper,chromoium,nickel,and molybdenum