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JONES & LAUGHLIN STEEL CORP

Overview
  • Total Patents
    665
About

JONES & LAUGHLIN STEEL CORP has a total of 665 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, machines and surface technology and coating are UNITED STATES STEEL CORP, INLAND STEEL CO and BETHLEHEM STEEL CORP.

Patent filings in countries

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

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Rendleman Norman C 22
#2 Laycak John F 17
#3 Gerding Charles Christian 17
#4 Gerding Charles C 12
#5 Free John W 12
#6 Butler John F 11
#7 Palmer Charles E 10
#8 Webster Richard R 9
#9 Vajda Stephen 9
#10 Uphoff Russel L 9

Latest patents

Publication Filing date Title
US4456417A Method and apparatus for aligning, supporting, and transporting hollow cylinders
CA1188520A Process for desulfurizing steel
US4357003A Blast furnace cast house pollutant suppression
US4357125A Railway ingot mold car
US4277279A Method and apparatus for dispensing a fluidized stream of particulate material
US4359202A Apparatus for bottom casting metal ingots
US4266969A Desulfurization process
ES477854A3 A method and apparatus for providing a protective gaseous atmosphere around a liquid stream during transfer from one container to another.
US4217177A Vented coke oven door apparatus
US4200499A Warp-resistant doorjamb for a coke oven
US4238230A Process for producing free-machining steel
US4207145A Method to control carbon formation and temperature in the free space of coke oven chambers
US4181524A Free machining high sulfur strand cast steel
CA1050838A Organic coating of metallic substrates
US4117706A Remotely adjustable hydraulic pressure regulator
US4144758A Radiation measurement of a product temperature in a furnace
US4289548A High strength cold finished bars
US4104088A Method of making differentially coated one side alloyed galvanized steel strip
US4086145A Coke oven door lining
US4092179A Method of producing high strength cold rolled steel sheet